Indispensability
出国 Abroadn. 不可缺少, 责无旁贷
✅ 同义词
🗣️ 情景例句
Why don't we take a walk down to the river?
我们何不一路散步到河边去呢？
He might not be here.
他可能不在这儿。
The stereo is near the door.
音响靠近门。