The head of a string of pigs appeared, snout-up, over the ditch, he had to screech to a stop and watch the rear of the last pig disappear on the other side.
群猪的领头出现了，它仰着鼻子走过水渠，不得不尖叫着停下来，目送最后一只猪消失在另一端。
3
They had a large canvas bag, which tied up at the mouth with strings: into this they slipped the guinea-pig, head first, and then sat upon it.