n.矢车菊,<英口>警察,反吐丽蝇(腹部蓝色),<澳> 葡萄牙军舰
We could see a bluebottle on the rock.
我们能看见一只绿头苍蝇在岩石上。
It's very early in the year for a bluebottle.
现在出现反吐丽蝇还太早了些.