Osmium oxide
[机] 锇酸酐
🧩 词语组成解析
n. 锇\\n[化] 锇Os
oxide
['ɑksaɪd]
n. [化]氧化物;
🗣️ 情景例句
I estimate his age to be about 30.
我估计他的年龄大约30岁。
He who does not advance falls backward.
不进则退。
Where were we?
我们说到哪儿了？