Leakproofness
密闭度
🗣️ 情景例句
In my opinion, winter in Beijing is not very cold.
我觉得北京的冬天不是特别冷。
That's just what I was thinking.
我就是这么想的。
Because the weather was very hot, he carried the bed on to the roof of his house.
由于天气很热，他便把床搬到了他的屋顶上。