1·We were crawling around on all fours.
我们匍匐着四处爬行。
—— 《牛津词典》
2·She crawled on all fours over to the window.
她匍匐着爬到窗边。
—— 《柯林斯英汉双解大词典》
3·Afraid that in her unclear state of mind she might fall off the rock to her death, Grant climbed on all fours up a tight, narrow path by digging into the earth with his fingers and feet until he reached Paula.
担心她在神志不清的状态下会从岩石上掉下来摔死，格兰特手脚插入泥土，四肢并用地沿着一条狭窄的小路往上爬，一直爬到宝拉身边。
4·Pedals apparently has an injured leg or paw that doesn't allow it to walk comfortably on all fours according to experts.
据专家说，显然 Pedals 有一条腿或一只熊掌受伤，这使它不能舒服地用四肢行走。
5·The horse jumped the stream and landed on all fours.
那匹马跳过小溪，四脚落地。
—— 《新英汉大辞典》
6·He is just a baby on all fours.
他只是一个匍匐爬行的婴儿。
7·A baby crawls on all fours.
婴儿四肢着地爬行。
8·The baby goes on all fours.
这婴儿在地上爬行。
9·Get down on all fours and look around.
四肢触地，模仿狗狗的样子来观察四周。
10·He went up the steep path on all fours.
他手足并用地攀爬上陡峭的小路。