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[化] 示踪原子
🧩 词语组成解析
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['treisə]
n. 追踪者，描图者，（铁笔等）绘图工具;
🗣️ 情景例句
I'm very grateful, Robbie.
非常感谢你 ，Robbie。
Where were you on Tuesday?
星期二你在哪里？
The guests had, of course, realized this from the moment Bessie opened the door for them and, long before the final catastrophe, had had a difficult time trying to conceal their amusement.
客人们自然从贝西为他们开门那一刻起就看出来了，在好长一段时间里，即最后这个乱子发生前，他们努力克制才没笑出声来。