看一下它们的英语解释：
crawl: [ krɔ:l ]
n. 爬行,匍匐而行
v. 爬行
例句与用法:
1. The heavy traffic crawled through the narrow tunnel.
拥挤的车辆慢吞吞地穿过狭窄的隧道。
2. The traffic crawled over the bridge in the rush-hour.
在高峰时刻桥上的车辆行驶缓慢.
3. The ground was crawling with ants.
地上满是蚂蚁.
4. Can you do the crawl?
你会自由泳吗?
5. She's always crawling (to the boss).
她老是拍（上司的）马屁.
6. The baby often crawls on all fours.
婴儿经常匍匐而行。
7. He can swim breaststroke, backstroke and crawl.
他会游蛙泳、仰泳和自由泳。
英英解释:
名词crawl:
1. a very slow movement
2. a swimming stroke; arms are moved alternately overhead accompanied by a flutter kick
同义词：front crawl, Australian crawl
3. a slow mode of locomotion on hands and knees or dragging the body
同义词：crawling, creep, creeping
动词crawl:
1. move slowly; in the case of people or animals with the body near the ground
同义词：creep
2. feel as if crawling with insects
3. be crawling with
4. show submission or fear
同义词：fawn, creep, cringe, cower, grovel
5. swim by doing the crawl
creep: [ kri:p ]
n. 爬,徐行,蠕动
v. 爬,蔓延
例句与用法:
1. We crept upstairs so as not to wake the baby.
为了不吵醒婴儿，我们蹑手蹑脚地上了楼梯。
2. The cat was creeping silently towards the mouse.
猫悄悄地朝着老鼠爬过去。
3. Ivy had crept up the castle walls.
常春藤爬上了城堡的围墙。
4. The thief crept along the corridor.
那贼偷偷地在走廊上潜行。
5. I don't like him: he gives me the creeps.
我不喜欢他, 他这人很讨厌.
6. The cat crept silently towards the bird.
那只猫一声不响地接近那只鸟.
7. She crept up to him from behind.
她从後面蹑手蹑脚地走近他.
8. You slimy little creep!
你这个卑鄙无耻的奴才！
英英解释:
名词creep:
1. someone unpleasantly strange or eccentric
同义词：weirdo, weirdie, weirdy, spook
2. a slow longitudinal movement or deformation
3. a pen that is fenced so that young animals can enter but adults cannot
4. a slow mode of locomotion on hands and knees or dragging the body
同义词：crawl, crawling, creeping
动词creep:
1. move slowly; in the case of people or animals with the body near the ground
同义词：crawl
2. to go stealthily or furtively
同义词：sneak, mouse, pussyfoot
3. grow in such a way as to cover (a building)
同义词：grow over
4. show submission or fear
同义词：fawn, crawl, cringe, cower, grovel
参考资料：dict.cn
crawl 做名词又做动词。（一般指小孩子在学走路前学爬时）
vi.爬行, 蠕动, 徐徐行进
n.爬行, 蠕动, 缓慢的行进
creep 只是一个及物动词。（稍微静静地爬）
vi.爬, 蹑手蹑脚, 蔓延