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高频词对应的绘本级别 预备级绘本：go, goes, play 1级绘本：be, is, are, can, like, has, get, count 2级绘本：love, let, have, see, look, do, does 3级绘本：will, want, say, said, come, came, use, make, making 4级绘本：am, was, were, had, having, see, saw, hear, smell, touch, taste, eat, ate, ask, tell, going, take, live, grow 5级以上绘本：hate |
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