Swallows migrate south in winter.燕子在冬天迁徙到南方。The swallows are building a nest under the roof of our house.燕子正在我们的屋檐下筑巢.Swallows come by groups at the advent of spring.春天来临时燕子成群飞来....

n.（吃或喝的）一口( swallow的名词复数 )...

wallows的音标：...

swallows的音标：...

She wallows in nostalgia for the past.她沉湎于对过去的怀恋.He wallows in luxury.他沉溺于奢侈生活中.He wallows in blood.他挣扎在血泊中....

v.沉迷( wallow的第三人称单数 )，热中于，在海浪中颠簸，快活地在泥沼中打滚...

The magnolias are in blossom and they attract many swallows.玉兰花开吸引了许多燕子.There were swallows in the cloudless blue sky...燕子在万里无云的蓝天飞翔。The swallows are building a nest under the roof of our house.燕子正在我们的屋檐下筑巢.Thoughts pass...