别想把你脸上那几根毛说成是胡子来美化它!Don't try to dignify those few hairs on your face by calling them a beard!它们吃了含有乳汁的酥油草,膘肥体壮,毛色格外发亮,好象每一根毛尖都冒着油星.They are chewing the juicy grass which makes their fur sleek.在接触点上,根毛细胞壁内凹.The root...
你能弯下腰、不屈膝摸着你的足趾 吗 ?Can you bend down and touch your toes without bending your knees?这个曲调一响起,我们的足趾也跟着摆动起来.The tune set our toes twinkling.陆栖食肉动物的前后肢上都长有四个或五个带爪的足趾.Terrestrial carnivores have four or five clawed digits on ...