if

805 篇文章
There is much to do, if they're to raise a chick before winter returns.
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There is much to do, if they're to raise a chick before winter returns. 如果他们还打算在冬天来临前养育孩子 要做的事情还有很多

If she doesn't appear soon, it will be too late for them to breed successfully.
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If she doesn't appear soon, it will be too late for them to breed successfully. 如果雌性信天翁还不出现 他们将错过顺利繁衍后代的机会

So if the hatch ling keeps its nerve, it may just avoid detection.
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So if the hatch ling keeps its nerve, it may just avoid detection. 所以如果这只小鬣蜥能保持冷静 也许能逃出它们的视线

If he can master the strange ways of this forest
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If he can master the strange ways of this forest 如果他能掌握这片森林中特有的生存方法

If he is to survive here, he has much to learn.
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If he is to survive here, he has much to learn. 他还需要学习很多东西 才能在这存活下去

But if rivals are closely matched, the outcome can be uncertain.
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But if rivals are closely matched, the outcome can be uncertain. 但如果双方体型相当 鹿死谁手就难以预料

Why waste energy chasing around, if you can attract prey towards you with a lure?
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Why waste energy chasing around, if you can attract prey towards you with a lure? 既然有引诱猎物过来的诱饵 何必浪费能量到处追赶猎物呢

The monkfish can wait, for days if necessary,
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The monkfish can wait, for days if necessary, 安康鱼可以等好几天

but, in the deep sea, as everywhere else if there are grazers, there are hunters.
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but, in the deep sea, as everywhere else if there are grazers, there are hunters. 不过海底也和其他地方一样, 既然有吃素的,肯定有吃肉的

If we are to follow, we must use a submarine.
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If we are to follow, we must use a submarine. 如果想要跟下去,必须乘潜水艇