骆驼的蹄子虽然非常适合于在干沙上行走，碰到泥泞时却无计可施。The camel's feet, well adapted for dry sand, are useless on mud.骆驼是地球上生理适应能力最强的生物之一。Camels are among the most physiologically resilient creatures on Earth.这些骆驼顺利前进,而且行动温顺.The camels wer...
One laboratory stock of Drosophila melanogaster has very reduced or vestigial wings.果蝇的一种实验品系,翅膀缩小,称为残翅.THREE NEW SPECIES OF NICRICOLOR SPECIES - GROUP OF DROSOPHILA ( LORDIPHOSA ) ( DIPTERA: DROSOPHILIDAE )黑色拱背果蝇种组三新种记述...
他的观点源于他卑微的出身。His views come from his own humble beginnings.他是个出身卑微的人.He is a man of mean birth.“ 好心的人从来都是把自己说得十分卑微的, ” 医生说." Good men ever interpret themselves too meanly,'said the physician....