1. The gnatcatcher darted through the trees, catching insects in mid-air.
这只蚊虫捕鸟在树林间迅速穿行，捕捉空中的昆虫。

2. The small and agile gnatcatcher is known for its ability to catch flying insects.
这种小巧敏捷的蚊虫捕鸟以捕捉飞行昆虫的能力而闻名。