Alfene synthesis
[化] 铝烯合成法(利用铝催化剂合成α-烯烃方法)
🧩 词语组成解析
🗣️ 情景例句
He doesn't want anybody picking him up.
他不愿意让别人接他。
In good years corn is hay, in ill years straw is corn.
丰年五谷贱如草，荒年稻草贵如粮。
You are just putting on a little weight. I believe you'll get that off easily.
你只是稍微胖了些，很快就会恢复的。