Osmium tetraoxide
[化] 四氧化锇
🧩 词语组成解析
n. 锇\\n[化] 锇Os
四氧化物
🗣️ 情景例句
Did you find the sandwich I made for you?
你找到我为你做的三明治了吗？
He hasn't done any worthwhile work in five years.
这五年来他没做过一件正经事。
Did you give our English teacher a card for Teachers' Day?
你给了我们的英语老师教师节贺卡了吗？