Flying Birds
飛鳥
Birds don't fly high up in the sky.
鳥在天空中的飛翔高度不高。
The air is too thin. It is hard for birds to breathe in thin air .
空氣太薄。鳥類很難呼吸。
Thin air doesn't hold them up.
稀薄的空氣并不供給它們足夠的氧氣。
Birds fly near the ground so that they can see where they are.
鳥兒會靠近地面飛行,這樣它們才能了解地面上的情況。
The birds look for places they know. Then they do not get lost.
鳥兒尋找他們知道的地方。他們不會迷路。
Some birds fly so low over the ocean that the waves often hide them.
鳥兒會在海洋上低飛,有時海浪會將它們遮蓋住。
Many birds fly long distances in the spring and autumn.
在春天和秋天,許多鳥類的飛行距離會很長。
WORD BANK
詞匯表
air
空氣
breathe
呼吸
hold
把握,支持
ground
地面
ocean
大海,海洋
wave
波,波浪
distance
距離;遙遠