Simonini reaction
[化] 西莫尼尼反应
🧩 词语组成解析
🗣️ 情景例句
It's on the house.
这是免费的。
Look! Lightening has struck the tree and it's on fire.
瞧！闪电划下来，引燃了树木。
How long are you staying in Xi'an?
你要在西安呆多久？