Olefine ketone
[化] 烯酮
🧩 词语组成解析
[化] 烯烃; 链烯烃
ketone
['ki:toʊn]
n. 酮;
🗣️ 情景例句
Can you show me how to apply this make-up correctly?
你能告诉我怎么正确地使用这种化妆品吗？
Excuse me.Can you tell me the correct time?
对不起，你能告诉我一下准确的时间吗？
If there had not been a hard layer of rock beneath the soil, they would have completed the job in a few hours.
如果不是因为土壤下面有一层坚硬的岩石，他们的营救工作仅用几个小时就可以完成了。