蹒跚学步，拼音是pán shān xué bù，意思是比喻做事刚刚开始。 腿脚不灵便，走路缓慢、摇摆的样子。
这对夫妇曾帮着寻找那些蹒跚学步的孩子。
当他还是个蹒跚学步的孩子时，他故意把脚放在一条巨大的棕色杀人蛇上。
As a toddler, he put his foot deliberately on a large brown killer snake.
相比之下，48%的超重婴儿和24%的正常体重婴儿在蹒跚学步时体重过重。
By comparison, 48 percent of the overweight babies and 24 percent of the normal-weight babies weighed too much at their toddler visits.
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