🗣️ 情景例句
What classes are mandatory for your major?
你的专业什么课是必修的？
I'm sorry to burst in on you like this, but I'm really upset.
我很抱歉这样突然地找您，但我真的很心烦。
for she had sixteen watertight compartments.
因为船由16个密封舱组成，