Waterproofness
防水性
🗣️ 情景例句
This must be a proud day for you.
今天是你值得骄傲的一天。
This is a radio.
这是一台收音机。
I told her what the revolutionaries were doing and I persuaded her to help me.
我告诉她革命者都在干些什么事，并说服她给我帮忙。