你: you放心: set one's mind at rest; be a ...吧: crackling我们: we会: compute尽力而为: do everything in one's power ...的: 4次方是 The fourth power of 2 i ...但妈妈会尽力而为: but ill try the best as i can尽力而为: do everything in one's power; contribute according to one's ability; do one's best; do ... to the best of one's capabilities; do whatever lies [is] in one's power; exert one's utmost; make the best of one's way; shoot one's best努力；尽力而为: do/try one's best/utmost; do/try one’s best/utmost我尽力而为: i'll try my best放心吧我给你保驾: don't worry. i'll escort you也须尽力而为: think a great deal of oneself你放心吧出不了岔: don't worry everything will be all right你放心吧亏不了你: don't worry. we won't be unfair to you慢慢来尽力而为: easy does it when you can你已经尽力而为了: you did the best you could他答应尽力而为: he promised to do his best在困境中尽力而为: to make the best of a bad job放心吧: remembered; set your heart at rest（伊智提哈德）尽力而为、独立判断: ijtihad彻底支持者, 尽力而为者: whole-hogger立足脚下，凭你所为，尽力而为: do what you can ,with what you have ,where you are你就放心吧: you'd better believe请放心吧: trust me
