Leakproofness
密闭度
🗣️ 情景例句
He keeps himself fit by running 5 miles every day.
他每天跑五公里以保持身体健康。
There's nothing like a cup of tea when you're thirsty.
当你口渴时，没有什么东西比一杯茶更好了。
Insurance companies are normally willing to insure anything.
保险公司一般说来愿意承保一切东西。