Perosmic anhydride
[化] 四氧化锇
🧩 词语组成解析
[化] 酸酐; 酐; 某酐\\n[医] 酐, 脱水物
🗣️ 情景例句
International travel involves a lot of waiting around in airports.
经常在机场等候是环球旅行的一部分。
We're having some friends over. What are you doing?
我们打算请几位朋友来玩。你打算干什么呢？
As quickly as they could, the men ran to th steps and up into the open, many of them with their clothes on fire.
工人们尽快朝楼梯跑去，爬上楼梯跑出舱外，其中好多人衣服已经着火了。