Lucibacterium
射光桿菌属
🗣️ 情景例句
Mary and Arnold are going steady.
玛丽和阿诺德正式成为情侣。
I've got a lot of things to do before I can leave.
在我能离开以前，我有很多事情做。
I'll have to ask my boss first.
我必须先问一下我的老板。