势在必行

circumstances require action (idiom); absolutely necessary / imperative

to exist; to be alive / (of sb or sth) to be (located) at / (used before a verb to indicate an action in progress)

row / line / commercial firm / line of business / profession / to rank (first, second etc) among one's siblings (by age) / (in data tables) row / (Tw) column

to walk / to go / to travel / a visit / temporary / makeshift / current / in circulation / to do / to perform / capable / competent / effective / all right / OK! / will do / behavior / conduct / Taiwan pr. [xing4] for the behavior-conduct sense

certainly / must / will / necessarily

power / influence / potential / momentum / tendency / trend / situation / conditions / outward appearance / sign / gesture / male genitals