Pb
[计] 10的15次方字节\\n[医] 铅(82号元素)
✅ 同义词
🗣️ 情景例句
I heard a lot of shouting, what's up?
我听见很多喊声，出了什么事了？
This is Mary Speaking.
我是玛丽。
Do you usually buy in large quantities?
你们的订购量通常都很大吗？