Nitrobarite
[化] 鋇硝石
??? 情景例句
I suggest that we go climb White Cloud Mountain tomorrow.
我建議明天一起去爬白云山。
All our work was in vain.
我們白干了一場。
A child ran into the street and knocked her off her bicycle.
一個(gè)孩子沖上馬路，把她從車上撞了下來。