Indispensible
不可或缺
🗣️ 情景例句
How long will it take to get some more in from the factory?
从工厂再运一些货过来要多久？
If it doesn't rain tomorrow, will you come to see me?
如果明天不下雨的话，你会来看我吗？
It is being repaired by a friend of my father's.
父亲的一个朋友正在修理这件乐器。