Phenanthrone
[化] 菲酮
🗣️ 情景例句
That was not the case.
事实并非如此。
I would like to go to the employment agency for a job.
我要去职业介绍所找一份工作。
Now move the hand to and fro and around but not up and down.
然后把手前后左右以及旋转摆动，但不要上下摆动。