Apodidae
雨燕科
🗣️ 情景例句
Birds of a feather flock together.
物以类聚。
Have but few frieds,though many acquaintances.
结交可以多，朋友应宜少。
First of all, it's been improved. And it's bigger, although it's more expensive.
首先，它已作了改进。而且机子较大，尽管价格贵些。