Regulin
边条曲菌素
🗣️ 情景例句
How many people are there in your family?
你家里有几口人？
It is easier to raise the devil than to lay him.
养虎易，驯虎难。
The porter went to fetch one and arrive back with the station master,
搬运工跑回去取时刻表，同时请来了站长。