Unsubstituted
未被取代的
🗣️ 情景例句
I'm not sure I'm up to it.
我不能肯定我是否能做得来。
The meat packing industry is developing fast.
肉类加工业发展迅速。
Sure! But why don't you come with me?
当然可以！但你为什么不同我一起去呢？