Heptalenium
并庚间三烯离子
🗣️ 情景例句
We're not?
不在这里？
I think she works much too hard.
我认为她未免太过辛劳了。
The garden was soon littered with chunks of metal which had once made up a lawn mower.
一会儿工夫，割草机便被拆成一个个金属零件，乱七八糟地堆在花园里。