shì​zài​bì​xíng

to be imperative

势在必行 勢在必行 shì​zài​bì​xíng
to be imperative adjective
(idiom) circumstances make it necessary to act; absolutely necessary to proceed; unavoidable based on the current situation

Frequency

Movie subtitles
0.330 per million appears in 0% of films
Written text
2.91 per million

Sources