繁难: hard to tackle; troublesome的: 4次方是 The fourth power of 2 i ...问题: question; problem困难的问题: puzzle一个难的问题: a difficult question极其困难的问题: an exceedingly difficult problem最重要的问题, 最后也是最难的问题: a sixty-four dollar question繁难: hard to tackle; troublesome 繁难的问题 knotty problem表示的问题: problem of representation拨放的问题: sc can't pass authentication不育的问题: infertility菜单的问题: dropdownlist常见的问题: faq frequently asked questions从属的问题: auxiliary problem存在的问题: open question; problem当面的问题: purpose当前的问题: muttons迪克的问题: dick's questions多目的问题: multiobjective problem放屁的问题: problem with gas复杂的问题: complex problem关心的问题: concern关于…的问题: a matter of; question (to)合理的问题: fair question很傻的问题: about ff7