英語Restlet Client Sign翻譯成中文是：”Restlet客戶端簽名“。
重點單詞：sign
單詞音標：
sign單詞發音：英[sa?n] 美[sa?n]
單詞釋義：
v. 簽名; 簽署; 簽字; 簽(名); 署(名); 和…簽約(或應聘); 示意; 打手勢; 打手語;
n. 標誌; 跡象; 征兆; 預兆; 招牌; 標牌; 指示牌; 示意的動作(或聲音); 手勢; 符號;
短語搭配：
plus sign?加號；正號
through signs?通過示意動作
a sure sign of sth?某事物的明確跡象；某事物的明顯標誌
there's no sign of sb/sth?不見某人/某物的蹤影
雙語例句：
I talked with him by signs.
我和他用手勢交談。
The sign was no longer legible because much of the lettering had worn away.
這塊招牌已看不清楚，因為大部分字已磨掉了。
Make sure that the sign's the right way up.
壹定要把符號的上下弄對。
Pay special attention to the sign of the answer.
特別註意答案的正負號。