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
Didn't you feel terrible?
没有感到可怕吗？
Would you please tell us the price of these electric heaters so as to help us make the decision.
能否告知这些电热器的价格，以便我们作出决定。
He does everything without aim.
他做事都漫无目标。