carefully 這是一個副詞，並且是一個多音節單詞，它是一個規則的副詞，所以比較級和最高級分別是
more carefully
most carefully
He writes carefully.他寫字很認真。這是一個原級句子
He writes more carefully than Lucy.
他寫的比露西認真。這是一個比較級的句子。
He writes most carefully in his class.在他班裏他寫的最認真。最高級句子
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