燕子的用法和樣例：
例句
-
燕子在空中掠過(guò)。
Swallows are darting through the air. -
燕子以蟲(chóng)為食。
Swallows are insectivorous. -
英國來(lái)的燕子飛到南非那樣遠的地方。
Swallows from England go as far as South Africa. -
燕子在屋檐下筑巢。
The swallows nested under the eaves. -
燕子在我們的屋檐下壘了一個(gè)窩。
The swallow has made a nest under our eaves. -
天空中有許多燕子。
There are many swallows flying in the sky.
