讲话内容本身未必要带有一定的攻击性: in the above example a loud sharp“no”to stothe action immediately and demand attention
有利: advantageous; beneficial; favourable 短语和例子有利于集体 advantageous to the collective; 有利于健康 beneficial to health; 有利于改进领导作风 help improve the style of leadership; 有利的机遇 good opportunity; opportun
我想我其实是替另外一个人交的: for another one i guessedfor anther one i guess
对有利: in one's favour（=to one's advantage）to the advantage of sb
