Backstand
张紧座; 后座; 支撑结构
🗣️ 情景例句
I've never been more serious.
我从来没有比现在更认真了。
I would like to call the employment agency for a job.
我要打电话给职业介绍所代我找一份工作。
I was angry because they were late.
我生气，因为他们迟了。