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
Did she say why she had to leave today?
她说了她为什么今天非走不可吗？
My brother was discharged from hospital last week.
我兄弟是上周出院的。
Now the snag in this sort of anecdote is of course that one cannot distinguish cause and effect.
这类奇闻的疑难之处是无法区别因果关系。