... sewer man-hole 污水窨井 man-hole opening 人孔口 loading man-hole 加感人孔 ...
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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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