燕子的用法和樣例：
例句
-
燕子在空中掠過。
Swallows are darting through the air. -
燕子以蟲為食。
Swallows are insectivorous. -
英國來的燕子飛到南非那樣遠的地方。
Swallows from England go as far as South Africa. -
燕子在屋檐下築巢。
The swallows nested under the eaves. -
燕子在我們的屋檐下壘了一個窩。
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.
