Imperviousness
n. 不渗透性；不透水性；不通透性
✅ 同义词
🔴 反义词
🗣️ 情景例句
Thanks again.
再次谢谢 。
Let us take a break now.
让我们休息一下。
She finished it at half past nine. She went to bed before a quarter to ten.
30 她完成了作业。她9：45之前上床睡觉。