Nitrobacterium
[医] 硝化菌
🗣️ 情景例句
Titusville. It's near Orlando. Titusville
在Orlando附近。
Do not hallo till you are out of the wood.
未出险境，先莫高兴。
Look! That girl has fallen off her bicycle.
看！那个女孩从自行车上摔下来了。