成语名称:划一不二:fixed(rigid; unalterable)英语: fixed(rigid; unalterable)成语近义: 说一不二(shuō yī bù èr):指说话算数;说了就不更改。言行一致(yán xíng yī...
成语名称:缺一不可:necessary(None of them can be dispensed with.)英语: necessary(None of them can be dispensed with.)成语近义: 必不可少(bì...