较劲

较劲	jiào jìn	to match one's strength with / to compete / more competitive / to set oneself against sb / disobliging / to make a special effort
较	jiào	(bound form) to compare / (literary) to dispute / compared to / (before an adjective) relatively; comparatively; rather / also pr. [jiao3]
劲	jìn	strength / energy / enthusiasm / spirit / mood / expression / interest / CL:把 / Taiwan pr. [jing4]
劲	jìng	stalwart / sturdy / strong / powerful