this boy isn't as careful as than that one,同义句转换
问题描述：
this boy isn't as careful as than that one,同义句转换
答
原句有点小问题，多了一个than哦，应该是"This boy isn't as careful as that one."
然后可以用than 来改成同义句:
" This boy is less careful than that one."
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答
this boy is more careless than that one.
答
This boy is more careless than that one.