Signed instrument
[经] 签约文件
🧩 词语组成解析
signed
[saind]
adj. 有符号的，有正负之分的;
instrument
['ɪnstrəmənt]
n. 仪器;手段，工具;乐器;法律文件;
vt. 用仪器装备;为演奏谱曲;向…提交文书;
in内+stru=struct建立+ment表名词→内部结构→仪器；工具
🗣️ 情景例句
Am I older than you? You look so young.
我比你老吗？你看起来非常年轻？
Experience is the best teacher.
经验是良师。
Yes, it is. Why don't you take off your sweater?
是啊，你何不脱了羊毛衫呢？