Leakproofness
密闭度
🗣️ 情景例句
How long does your vacation last?
你的假期有多长？
I'm afraid it's going to be too wide.
我怕它将太宽。
The garden was soon littered with chunks of metal which had once made up a lawn mower.
一会儿工夫，割草机便被拆成一个个金属零件，乱七八糟地堆在花园里。