Undersaturation
欠饱和, 未饱和
🗣️ 情景例句
Is he a client?
他是顾客吗？
What do you do in your spare time?
闲暇时，你干些什么？
It was carrying some large bags of rice. Suddenly one of the bags fell off the truck.
它运载着大包大包的米。突然一袋米从卡车上掉了下来。