all fours

She huddled all four boys into one bed.

她让个男孩都挤在一张床上。

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

帮匪们曾经威胁说如果印度方面不释放他们同伙，他们就要这名人质全斩首。

Frankie scuttled away on all fours.

弗兰基手足并用地匆忙逃走。

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

地道里很矮，我们只能匍匐前进。