你会一步一步地往上爬，你偶尔也会冒一冒险。
学习和研究好比爬梯子，要一步一步地往上爬，企图一脚跨上四五步，平地登天，那就必须会摔跤了。——华罗庚。
Study and research is like climbing a ladder to climb step by step, to a foot up four or five steps, the ground's day, that must be wrestling.
牠很小并且爬得也很慢，不过，如果牠不断地一步一步、一寸一寸慢慢地往上爬，牠总有一天会爬到这个树顶上。
He's small and he's slow but if he continues to climb slowly step by step, inch by inch, one day he'll reach the top of that tree.
牠很小并且爬得也很慢，不过，如果牠不断地一步一步、一寸一寸慢慢地往上爬，牠总有一天会爬到这个树顶上。
He's small and he's slow but if he continues to climb slowly step by step, inch by inch, one day he'll reach the top of that tree.
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