The boa feeds on birds and small mammals.

蟒主要吃鸟和小的哺乳动物。

The seals feed mainly on fish and squid.

海豹主要以鱼和乌贼为食。

The gas turbine feeds on the fuel it pumps.

这台燃气轮机以它抽入的燃料为能源。

California ground squirrels tunnel into the shrub-covered earth, feeding on meadow grass and bitterbrush.

加州地松鼠钻入灌木覆盖的土地，以草和苦艾灌木为食。

The ivory gull often follows polar bears to feed on the remains of seal kills.

象牙海鸥经常跟在北极熊的后面吃剩下的海豹尸体。

It wasn’t easy to lose puppy fat when Mum fed her on stodgy home cooking.

母亲给她吃易饱的家常菜，她想减掉婴儿肥可是很难。

Cattle feed chiefly on grass.

牛主要以草为食。

The ladybug attacks the molluscoid pest while the green lacewing feeds on a variety of other insects.

其中瓢虫能对付软体害虫，草蛉能捕食害虫的卵及幼虫。

The savanna is also the home of meat-eaters—the lion, leopard, and hyena who feed on the grasseaters.

大草原也是食肉动物的家乡－－狮子、豹、鬣狗－－它们都是以草食动物维持生命的。

On our night walkabout underneath the Southern Cross, we saw a half-dozen big gray kangaroos feeding on brush.

当晚，我们头顶着南十字星徒步旅行，看到五、六只大灰袋鼠以树丛为食。

Also indigenous to the region is the saddleback wrasse, seen underneath, which feeds on dead and damaged skin.

在海龟下面的是濑鱼，同样是夏威夷本土鱼种，它食用坏死的皮屑。

5 to 7 days' larve after hatching larvae mostly lived on copepod nauplii, copepodites and trochophore of Polychaeta in water of the earthen ponds, apart from feeding on particulate organic detritus.

孵化后5～7日龄仔鱼基本上依靠摄食土池水体中的桡足类无节幼体、桡足幼体和多毛类担轮幼体,但还摄食少量的颗粒有机碎屑。

When the Federation starship is fired upon again, the quintotriticale spills in the corridors, and the tribbles feed on it, growing to a size so massive that the glommer can no longer devour them.

寇克把琼斯从克林贡船上救过来，发现他带着一类新品种的帝波斯，它们经过了基因改造以减缓繁殖进程。