与此同时，他不停地挖啊挖，挖了一个大洞，大得足以探出头来。
Meantime he worked and worked away, till he made a hole large enough to put out his head.
他不停地挖。坑越来越深，土越堆越高。
He kept digging. The hole got deeper and the dirt pile got higher.
他不停地挖。坑愈来愈深，土越堆越高。
He kept digging. The hole got deeper and the dirt pile got higher.
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