Indispensability
出国 Abroadn. 不可缺少, 责无旁贷
✅ 同义词
🗣️ 情景例句
Does this car have good fuel economy?
这种车省油吗？
That's very nice of you, but I really can't.
谢谢你的好意，但是我实在不能再呆了。
When they had gone, the driver of the car came towards him.
他们走后，汽车司机向他走来，