Monoreactant
单元燃料, 单一反应物
🗣️ 情景例句
It's a beautiful day.
今天天气真好。
The young man had been well aware of her presence at the party.
那个年轻人早已注意到她在宴会上。
Excuse me! Is this your bike?
打扰一下。这是你的自行车吗？