Complementizer
n. [语](引导补语分句的) 补语化成分
🗣️ 情景例句
Well, you can write to her.
嗯，你可以写信给她。
How's your nephew?
你的女儿好吗？
Suddenly, there was a slight trembling sound from below, and the captain went down to see what had happened.
突然，从船舱下部传来一声微颤音，船长走下船舱去查看究竟。