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spawn
n/v.产卵(generate, produce)
pregnant
adj.怀孕的，孕育的
hatch
v.孵出，孵(卵)(incubate, breed, emerge from the egg)
Don't count your chickens before they are hatched.
别高兴太早了
domesticate
vt.驯养，教化(tame)
To domesticate animals like the African elephant requires patience and tactics.
驯养非洲象这样的动物需要耐心和策略。
fertilize
vt.使受精
regeneration
n.再生；重建
reproduce
v.繁殖，再生
Ferms reproduces themselves by spores, differing from that of animals.
蕨类植物与动物不同，它是通过孢子繁殖的。
squeak
vi.(老鼠或物体)吱吱
Can you hear the mice squeaking at night?
你能听到老鼠在夜间吱吱叫吗
chirp
vi.喳喳(虫和鸟的叫声)
Birds chirped away menily in the trees.
鸟儿在树林里欢快地鸣叫。
camouflage
v.伪装 n.伪装
The soldiers camouflaged themselves with leaves and branches.
士兵们用树叶和树枝伪装自己。
extinction
n.灭绝
nest
n.巢，窝
niche
n.合适的环境
We will outperform our competitors in the niche market.
我们将在利基市场上胜过竞争对手。
habitat
n.(动植物的)生活环境；产地；栖息地；居留地；自生 地；聚集处
Environmentalists are concerned about the damage to the habitats of wild animals.
环保主义者对野生动物栖息地的破坏感到担忧。
