Chalcogen
n. [化]硫族元素,氧属元素(包括氧、硫、硒等)
🔁 扩展释义
【化】 硫属元素; 氧族元素
🗣️ 情景例句
My mother would take us everywhere, too.
我妈妈也是带我们各处走。
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。
I've got a problem and as I don't know what to do I thought I'd write to you and ask for your advice.
我有一个问题，因为我不知道该怎么办。我想我最好写信给你，征求你的意见。