many---few
on,easily,wide,without,good,cold
A camel can walk (on) sand faster and more (easily) than any other animal,because a camel has (wide) soft feet.
A camel can travel a long wany (without) having a drink . But camels are useful in hot dry lands.They are no (good) at all in(cold) or wet lands.
错，应该是“a few”，few表示否定，而a few表示肯定
few on easily wide without good cold
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