Only in struggling to emerge from a small hole in the cocoon does a butterfly form wings strong enough to fly.
只有在茧中奋力地撑出了小洞，一只蝴蝶才能拥有足够强劲的翅膀用以飞翔。
One day, a small opening appeared on a cocoon, a man sat and watched for the butterfly for several hours as it struggled to force its body through that little hole.
在一个蚕茧上出现一个小洞孔；一个人坐在那几个小时观察这只蝴蝶，看它怎样努力迫使自己的身体从这个小洞出来。
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