Wallach transformation
[机] 瓦拉赫转变
🧩 词语组成解析
瓦拉赫(①姓氏 ②Otto, 1847-1931, 德国化学家, 曾获1910年诺贝尔化学奖)
🗣️ 情景例句
I don't have time to take any elective classes.
我没有时间去上任何选修课。
If it hadn't been for your help, we would never have finished it.
如果没有你的帮助，我们永远完不成任务。
Take a seat please, make yourself at home.
请坐，随便一点。