moment的意思是：時刻；瞬間，片刻；重要，緊要；
例句
1、Both men knew the moment of truth had arrived.
兩人都知道關鍵時刻到了。
2、I read Lasn's words back to him and asked him if he thought that moment had finally arrived.
我給拉森重讀了壹遍這番話，並問他是否認為這個時刻已經最終到來。
3、It was a very, very touching moment.
那是個非常非常感人的瞬間。
important的意思是：重要的； 權威的；有勢力的； 有地位的；
例句
1、It is important for the state's future administrators to get out of the rarefied air of the capital.
對國家日後的統治者來說，擺脫首都過於清高的氛圍是很重要的。
1、The most important business was left to the last.
最重要的事留到最後來解決。
3、Zip drives help people to organise their important information.
壓縮磁盤驅動器有助於人們管理重要信息。