千方百计: make every attempt [every possible effort; every endeavor] to; use [try; take] every means to; use every conceivable method [stratagem] to; use all sorts of wiles and methods to; use all w
千方百计地: in a thousand and one waysin every possible way
不择手段: use unscrupulous divisive tactics; be unscrupulous in one's efforts (to); by fair means or foul; by hook or by crook; go to every expedient; have no scruples about; resort to every expedie