n. 动物，动物世界；牲畜（animal 的复数）
1.Some animals are inactive during the daytime.
有些动物白天不活动。
2.Animals reject the runt of the litter.
动物们排斥一窝中最弱小的幼仔。
3.This experiment was harmless to the animals.
这个实验对动物无害。
4.Our beauty products are not tested on animals.
我们的美容产品不进行动物试验。
5.He loves animals and he knows all about them.
他热爱动物，并且对动物无所不知。
6.These animals rarely thrive in captivity.
这些动物栏养起来很少会肥壮。
7.These animals only come out at night.
这些动物只在夜晚出来。
8.Cats are very clean animals.
猫是颇爱干净的动物。