Alder reaction
[化] 艾勒德反应(即双烯合成)
🧩 词语组成解析
alder
['ɔ:ldə]
n. 桤木;
🗣️ 情景例句
I need to be in the top percentage of my class to study abroad.
为出国留学，我的成绩必须在班里名列前茅。
A little spark kindles a great fire.
星星之火，可以燎原。
For one agonizing moment, the dish was perched precariously on the bank of the canal, but it suddenly overbalanced and slid back into the water.
在令人忐忑不安的瞬间，盘子晃晃悠悠地上了岸，但它突然失去了平衡，又跌回水中。