Last year, Xu discovered another species of four-winged dinosaur, also at Liaoning.
去年，徐星又在辽宁发现了另一种四翼恐龙。
Xu calls it a "four-winged" dinosaur because it had long, pennaceous feathers on its arms and legs.
因为其前后肢上都存在着较长的羽翮，因此徐星将它称之为“四翼”恐龙。
Four-winged dinosaurs were ultimately a dead branch on the tree of life; they disappear from the fossil record around 80 million years ago.
四翼恐龙最终成为了生命之树上的灭绝分支；它们消失于8000万年前的化石记录中。
What locusts lack in agility, they make up for in distance: the four-winged insects are built to fly hundreds of miles at a time.
蝗虫不够灵敏？但它们飞得远，四只翅膀的昆虫能够一气飞行几百英里。
What locusts lack in agility, they make up for in distance: the four-winged insects are built to fly hundreds of miles at a time.
蝗虫不够灵敏？但它们飞得远，四只翅膀的昆虫能够一气飞行几百英里。
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