We learn to crawl before we learn to walk.
我们学会走路之前先要学会爬。
You should learn to crawl before you can walk.
在能走之前你得先学会爬。
You've got to learn to crawl before you learn to run.
在你学会跑之前你得学会爬。
Do not know if you are a good way to let their babies learn to crawl.
不知道大家有没有好方法让孩子自己学会爬。
European children learn the breast stroke; they often don't know how to crawl.
欧洲小孩学习蛙泳；他们经常不知道怎样进行自由式游泳。
European children learn the breast stroke; they often don't know how to crawl.
欧洲小孩学习蛙泳；他们经常不知道怎样进行自由式游泳。
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