Why not和 why don't的区别： 1、两个句子结构不同：why don't + 主语 + 动词；why not一定要直接跟动词，动词前不能有其他成分 2、why don't 结构可以有时态的变化，比如变为过去why. Why so serious是什么意思诺兰版小丑的经典口头禅——why so serious?，原意为“为什么这么严肃”。 这个角色的特质是漠视一切，尤其对生命、物质和精神价值持轻视态度。 有何不可？ 3 why not go out and see if.
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Why not+动词原形。 why not 读音 [hwaɪ nɑt] 何妨；何不 1 i shrugged, as if to say, 'why not?' 我耸了耸肩，仿佛在说，“为什么不？” 2 why not?
Can you explain the reason why/ that you are late for school?
Why not和 why don't的区别主要句型意思用法why not和 why don't的区别及用法：1、why not和 why don't两个句型意思基本相同，一般可以替换。2、why not 的意思是：为什么不做某事呢？.
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