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。
1·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。
2·For there he can maneuver you onto all fours.
他于是就转来转去，你还可以四肢趴着。
3·It includes a pelvis and whole limbs which could reveal whether the new species walked upright or on all fours.
包含骨盆和完整肢骨的化石能够揭示这个新物种是直立行走还是四肢行走。
4·The apes are more aggressive and more obviously animals than in the original film; they still frequently move on all fours and emit fierce shrieks whenever angry or excited.
电影中的人猿比原版中的更像我们印象中的那种生物，他们更具攻击性也更野性难驯，他们仍用四肢行走，生气或兴奋时就会发出我们在动物园听到的猩猩的那种嚎叫。
5·Baboons have a large head, cheek pouches, and a long, doglike muzzle. They walk on all fours, carrying the tail in a characteristic arch.
狒狒头部硕大，有颊囊，鼻口部狭长似狗。以四肢行走，行走时尾巴呈特有弓形。