must

238 篇文章
but they must still survive the attacks of other, more specialised, birds of prey.
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but they must still survive the attacks of other, more specialised, birds of prey. 但它们仍须躲过 其它更专业的猛禽的攻击

specialised attacks prey birds survive more must they of other the still but
crocodiles must strike with lightning speed.
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crocodiles must strike with lightning speed. 鳄鱼必须以闪电般的速度出击

lightning crocodiles speed strike must with
The cranes must gain height to avoid the building storm.
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The cranes must gain height to avoid the building storm. 鹤群必须提升高度 躲避正在形成的风暴

building height gain avoid cranes storm must the to
They must turn back
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They must turn back 它们只好掉头返回

back turn must they
they must cross the Himalayas.
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they must cross the Himalayas. 它们必须跨越喜马拉雅山脉

cross himalayas must they the
The cub must be patient.
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The cub must be patient. 小豹只能耐心等待

patient cub be must the
Males must fight for the right to breed,
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Males must fight for the right to breed, 公羊必须为争夺生育权而战斗

fight right males breed must for the to
She must soon leave the safety of these nursery slopes
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She must soon leave the safety of these nursery slopes 它必须尽快离开这个安全的斜坡“托儿所”

safety leave soon slopes nursery these must she of the
and guanacos and their newborn young must suddenly endure a blizzard.
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and guanacos and their newborn young must suddenly endure a blizzard. 羊驼和它们新生的幼仔 只好忍受突如其来的风雪

blizzard endure suddenly guanacos young newborn must their and a
The dogs know their prey must come out or drown -
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The dogs know their prey must come out or drown - 野狗们知道它们的猎物迟早会上岸 否则就会淹死

drown know prey dogs come or must their out the