all fours

She huddled all four boys into one bed.

她让四个男孩都挤在一张。

Frankie scuttled away on all fours.

兰基手足并用地匆忙逃走。

The kidnappers had threatened to behead all four unless their jailed comrades were released.

帮匪曾经威胁说如果印度方面释放他的同伙，他就要将这四名人质全部斩首。

The ceiling of the tunnel was so low that we had to crawl along on all fours.

地道里很，只能匍匐前进。