一触即发

could happen at any moment / on the verge

one / single / a (article) / as soon as / entire; whole; all; throughout / "one" radical in Chinese characters (Kangxi radical 1) / also pr. [yao1] for greater clarity when spelling out numbers digit by digit

to touch / to make contact with sth / to stir up sb's emotions

namely / that is / i.e. / prompt / at once / at present / even if / prompted (by the occasion) / to approach / to come into contact / to assume (office) / to draw near

to send out / to show (one's feeling) / to issue / to develop / to make a bundle of money / classifier for gunshots (rounds)

hair / Taiwan pr. [fa3]