Spontaneous reaction
[化] 自发反应
🧩 词语组成解析
🗣️ 情景例句
The birthday dinner was held at a five-star restaurant.
生日宴会在一个五星级的宾馆里举办。
The day is short but the work is much.
工作多，光阴迫。
They are paid by the hour.
他们按时取酬。