Phenanthrenone
[化] 菲酮
🗣️ 情景例句
The man grabbed my bag and ran away.
那男人抢了我的皮包就跑了。
Will you do me a favor?
你帮我一个忙好吗？
What do the machines do? asked Jim.
“这些机器做什么用？”吉姆问。