Contact agent
[计] 触媒
🧩 词语组成解析
contact
['kɑntækt]
n. 接触;触点;[医]（传染病）接触人;门路;
vt. 使接触;与…联系;与…通讯（或通话）;
vi. 联系，接触;
con共同+tact接触→共同接触 → 接触；联系
🗣️ 情景例句
I would hardly refer to junk mail as being literature.
我不会把那些垃圾邮件看成是文学。
Oh, really? Where did you go?
哦，真好？去哪儿了？
He has completed the task.
他完成了这个任务。