2008年BBC广播公司宣布，摄影记者在南极附近为其自然历史系列“奇迹演变”拍照时，抓拍到了企鹅飞翔的画面。
The BBC announced in 2008 that camera crews filming near the Antarctic for its natural history series Miracles of Evolution had captured footage of penguins taking to the air.
大多数鸟类的翅膀骨骼是中空的，这让他们更加轻盈，便于飞翔，但企鹅的翅膀骨骼是实心的，因为它们不需要飞翔。
Most birds have hollow bones in their wings to make them lighter for flight, but penguins don't fly, their wings contain solid bone.
大多数鸟类的翅膀骨骼是中空的，这让他们更加轻盈，便于飞翔，但企鹅的翅膀骨骼是实心的，因为它们不需要飞翔。
Most birds have hollow bones in their wings to make them lighter for flight, but penguins don't fly, their wings contain solid bone.
应用推荐