M.进取与落后 - 努力 M10-15

不遗余力, 竭尽全力

• try one's best/utmost to do sth.
• do everything one can to
• do everything possible to ...
  
• go to ADJ. lengths/pains to do ...
• spare no pains/nothing to do...
• take ADJ. pains/trouble to do; ....in doing

试图, 努力

• make ADJ. efforts/attempts to do
• attempt/endeavor to do
• concentrate/focus one's best efforts on sth.
• devote/dedicate/direct one's efforts to sth.
• put effort into sth.; efforts go into sth.
• in an effort to; in an attempt to
• in order to
• make progress/move toward....