Nitrobacteriaceae
[医] 硝化菌科
🗣️ 情景例句
The young couple started a family.
这对年轻的夫妇组成了一个家庭。
I often go out in the morning.
我常常在早上出门。
The test finished. We began our holiday.
考试结束了，我们开始放假。