Undersaturation
欠饱和, 未饱和
🗣️ 情景例句
I wonder whether I might ask you a question.
我是否可以问你一个问题？
San Diego. I got back yesterday.
圣地亚哥，我昨天才回来。
When the plants are in the ground I'll put some powder on the soil.
白菜在地里生长时，我得在土壤里施些肥粉。