If the muscles are relaxed, the sack shrinks, and all you see is a little white point.
当肌肉放松,色袋就会缩小,你就只能看到一个小白点。
2
Pigs are often considered "white meat", even though their muscles contain a lot more myoglobin than most other white meat animals.
一般都把猪肉看作是白肉,尽管猪肉中的肌红蛋白比其他白肉多很多。
3
Northern white-cheeked gibbons have specialized wrist joints and powerful arm muscles, which allow them to swing from tree branches, like the male pictured above in Pu Mat.