Monoreactant
单元燃料, 单一反应物
🗣️ 情景例句
Ah. OK. That's a dollar and thirty cents change.
啊 ，好啦。这是一美元三毛零钱。
He is in difficulty in his business.
他在事业上遇到困难了。
Perhaps there is an element of truth in both these pictures,
也许，这两种都像都有可信之处。