swift 是什么意思？

雨燕

a small, fast-flying insectivorous bird with long, narrow wings and a forked tail, typically dark in plumage

示例:• A swift darted across the evening sky.一只雨燕掠过夜空。• The old church tower is a nesting site for swifts.老教堂的钟楼是雨燕的筑巢地。同义词:apodecypselid