Leakproofness
密闭度
🗣️ 情景例句
What kind of exercises do you like to do?
你喜欢什么锻炼方式？
I think he will buy something.
我想他会买什么。
I'm not Lily. I'm Lucy. She's Lily!
我不是莉莉，我是露茜，她是莉莉。