She crawled on all fours over to the window.
她匍匐着爬到窗边。
When mother came back she found baby travelling the room over on all fours.
当妈妈回来时，她看见孩子四肢着地地在屋里爬着。
When mother came back she found baby traveling the room over on all fours.
当妈妈回来时，发现婴儿在屋里的地板上爬着。
When mother came back she found baby traveling the room over on all fours.
当妈妈回来时，发现婴儿在屋里的地板上爬着。
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