1937年，她逃離了她的祖國偷偷前往了好萊塢，在那裏，她 重塑 了自己的人生。她將自己的名字改為“海蒂拉瑪”，被稱為“熒幕上最美麗的女性”。然而，拉瑪打破了人們對女主角的刻板印象，她對數學與工程也展現了極大的興趣。很快她開始了自己的發明。她最早的發明包括壹款改良的交通燈和壹種可以溶解於水中制成碳酸飲料的藥片。
隨著世界大戰的爆發，拉瑪受到感召為戰爭效力。她為魚雷設計了收音 制導系統 。1940年，她認識了 作曲家 喬治·安塞爾，在他的幫助下她發現了壹種可以分解信號使之能夠在不同頻率間跳轉的方法。利用和自動鋼琴相似的原理，他們設計了壹種跳頻系統，可以連續變化發往魚雷的無線電。雖然包括尼古拉·特斯拉在內的其他發明家對跳頻技術也探索過相似理念，拉瑪和安塞爾在1942年以他們的發明 獲得了壹項專利 ，這壹技術後來被稱為擴展頻譜技術。
guidance system : a device that can change the direction or path of an object 制導系統
盡管美國 海軍 在戰爭期間沒有采用這壹技術，但它被應用到了1962年的 古巴導彈危機 中。幾十年來拉瑪的技術壹直 遭受冷遇 ，但 最終 它 引導 了今天擴展頻譜通信技術的創造，比如WI-FI網絡，移動電話，GPS和藍牙技術等等。
?WI-FI (Wireless Fidelity) 無線保真
拉瑪和安塞爾最終收獲了壹些獎項，因為他們壹生中創造性的成就 深深造福了社會 。2014年他們 入選了國家發明家名人堂 ，在拉瑪2000年去世之後。
flee -fled 逃離
reinvent
1.VERB 徹底改變;改造
To reinvent something means to change it so that it seems different and new.
They have tried to reinvent their retail stores...
他們壹直在嘗試改造他們的零售店。
He was determined to reinvent himself as a poet and writer.
他下決心把自己重塑成壹個詩人兼作家。
2.PHRASE 重復勞動;白費力
If someone is trying to reinvent the wheel, they are trying to do something that has already been done successfully.
Some of these ideas are worth pursuing, but? there is no need to reinvent the wheel .
這些觀點中有些值得進壹步探究，但是沒有必要全盤重來。
defy
1
VERB?違抗;反抗;不服從If you defy someone or something that is trying to make you behave in a particular way, you refuse to obey them and behave in that way.
This was the first (and last) time that I dared to defy my mother...
這是我第壹次(也是最後壹次)膽敢反抗我的母親。
Nearly eleven-thousand people have been arrested for defying the ban on street trading.?
將近有1.1萬人因為違抗禁止在街上擺攤交易的禁令而被捕。
2
VERB?挑戰;激;認為…不敢(或無法)（做）If you defy someone to do something, you challenge them to do it when you think that they will be unable to do it or too frightened to do it.
I defy you to come up with one major accomplishment of the current Prime Minister...
我敢說妳講不出現任首相的哪怕壹項重大成就。
He looked at me as if he was defying me to argue.?
他看著我，仿佛在激我與他爭論。
3
VERB?無法，難以(描述或理解)If something defies description or understanding, it is so strange, extreme, or surprising that it is almost impossible to understand or explain.
When the flowers open in spring they fill the night air with a fragrance that defies description...?
春天鮮花開放時，夜裏的空氣中會彌漫壹種難以名狀的香氣。
It's a devastating and barbaric act that? defies all comprehension .
這種行為野蠻兇殘、令人震驚，簡直是不可理喻。
4
PHRASE?看上去比實際年輕If you say that someone defies their age, or defies the years, you mean that their appearance or behaviour suggests that they are younger than they really are.
The singer continues to defy?her age ?by wearing the scantiest of outfits.
那名女歌手依舊穿著非常暴露的服裝，完全不似她這把歲數。
stereotype
1
N-COUNT?模式化的形象(或特征);固定模式;刻板印象;陳規老套A stereotype is a fixed general image or set of characteristics that a lot of people believe represent a particular type of person or thing.
There's always been a stereotype about successful businessmen...
人們對於成功商人壹直都有壹種固定印象。
Many men feel their body shape doesn't live up to the stereotype of the ideal man.
很多男人都覺得自己的體形不符合人們心目中慣有的理想男性形象。
2
VERB?使模式化;使定型If someone is stereotyped as something, people form a fixed general idea or image of them, so that it is assumed that they will behave in a particular way.
He? was stereotyped? by some? as ?a rebel...
他被壹些人認定為叛逆者。
I get very? worked up ?about the way women are stereotyped in a lot of mainstream films...
我對很多主流電影中千篇壹律的女性形象感到非常氣憤。
dissolve
1
V-ERG?（使）溶解If a substance dissolves in liquid or if you dissolve it, it becomes mixed with the liquid and disappears.
Heat gently until the sugar dissolves...?
慢慢加熱直到糖溶解為止。
Dissolve the salt in a little boiled water.
將鹽溶解在少許開水中。
2
VERB?解散(團體或機構)When an organization or institution is dissolved, it is officially ended or broken up.
The committee has been dissolved...?
委員會已經解散了。
The King agreed to dissolve the present commission.
國王同意解散目前的委員會。
3
VERB?解散(議會)When a parliament is dissolved, it is formally ended, so that elections for a new parliament can be held.
The present assembly will be dissolved on April 30th...?
現在的議會將於 4 月 30 日解散。
Kaifu threatened to dissolve the Parliament and call an election.
卡夫威脅要解散議會並舉行選舉。
4
VERB?解除(婚姻關系）；終止（商業協議)When a marriage or business arrangement is dissolved, it is officially ended.
The marriage was dissolved in 1976.?
這段婚姻於1976年結束。
5
V-ERG?（使）消失;消除;消散If something such as a problem or feeling dissolves or is dissolved, it becomes weaker and disappears.
His new-found optimism dissolved...?
他剛剛萌生的樂觀情緒消失了。
Lenny still could not dissolve the nagging lump of tension in his chest.
萊尼仍不能消除令他不安的緊張感。
obtain
obtain a patent
1
VERB?得到；獲得;實現To obtain something means to get it or achieve it.
Evans was trying to obtain a false passport and other documents...?
埃文斯正試圖取得壹本假護照和其他證件。
The perfect body has always been difficult to obtain.?
完美的身材總是很難擁有。
2
VERB?存在；流行；通行If a situation obtains, it exists.
The longer this situation obtains, the more extensive the problems become.?
這種局面持續的時間越長，問題波及的範圍就越廣。