趁机

趁机	chèn jī	to seize an opportunity
趁	chèn	to avail oneself of / to take advantage of
趁	chèn	old variant of 趁
机	Jī	surname Ji
机	jī	(bound form) machine; mechanism / (bound form) aircraft / (bound form) an opportunity / (bound form) crucial point; pivot / (bound form) quick-witted; flexible / (bound form) organic