Bismogen
[医] 铋激活物
🗣️ 情景例句
The pollution in Beijing is alarming.
北京的污染给人们敲起了警钟。
What shall I send him for his Christmas?
我要送他什么东西作为圣诞礼物？
I'd like to take these catalogs with me.
这些目录我想带走。