人体主要是由骨骼、肌肉和脂肪构成。The body is made up primarily of bone, muscle, and fat.游泳有助于改善骨质疏松和骨骼脆弱。Swimming is helpful for bones that are porous and weak.人的骨骼由206块骨头组成。The human skeleton consists of 206 bones....
在早晨,乡间小镇的街道是冷清的.The street of a country town is lonely at that early hour.他在国王冷清的宫殿里四处徘徊.He wandered hither and thither about the king's lonely palace.有一座村庄的名字听到让人发笑,它叫冷清的圣诞节.There is a village which glories in the ...
他是研究中国古代天文学文献的专家.He was an expert on ancient Chinese astronomical literature.这份文献显示出对宿命论的某些矛盾观点.The document expressed some ambivalence over the doctrine of predestination.这份文献的年份是775年.The document is dated 775....