cannot but ,cannot choose but ,cannot help but的意思

cannot but ,cannot choose but ,cannot help but的意思 Cannot cannot cannot but +动词原形 what has arms but cannot I ___ tell her the truth.A.cannot help B.cannot but C.may not help D.could but scandisk cannot examine drive c： cannot help but doing sth 的意思? would have,cannot but,would sooner 中文翻译 What has four legs but cannot walk? What has teeth but cannot eat? What has teeth but cannot eat? What has teeth but cannot eat? What has a tongue but cannot talk? What has teeth but cannot eat? what has tongue but cannot talk cannot but 它和cannnot help but及cannot choose but 意思一样么? cannot help oneself 和cannot help but怎么用能不能举几个例子,but后加不加to?