Peptogen
n. 助消化物质,助消化制剂
🗣️ 情景例句
You hold on to them so there won't be a problem later.
你来保管， 免得等一下又出问题了。
To learn how to count
学习记账
That is why we are learning English in China.
这就是我们在中国学习英语的原因。