Quando
[法] 当...时, 任何时候, 因为
🗣️ 情景例句
I need your help badly. My car can't start. Can you send somebody over?
我急需你们的帮助。我的车启动不了，能派人来修吗？
Excuse me I couldn't tell you beforehand.
对不起我不能事先告诉你。
His great flight lasted thirty-seven minutes.
他这次伟大的飞行持续37分钟。