Diphenylmethanes
二苯甲烷类
🗣️ 情景例句
We hired a woman to watch Richard and then Susan,
我们雇用一名女士来照顾Richard ，后来又照顾Susan
You are darker than I am.
你比我黑。
Which person do you think is qualified for the job?
你认为哪一个人能胜任这份工作？