overkill

n [U] (usu fig 通常作比喻) much greater amount than is needed to defeat sb/sth or achieve sth （为战胜某人[某事物]或达到某目的之）过火行动: It was surely overkill to screen three interviews on the same subject in one evening. 一晚放映三个同一主题的访问记实, 真是小题大做.

overeat, overemphasize, overestimate, overexpose, overexposure, overextend, overfish, overflow, overfly, overfulfil, overgrown, overgrowth, overhang, overhaul, overhead, overheads, overhear, overindulgence, overjoy, overjoyed, overland, overlap, overlapping, overlay, overleaf, overload, overlook, overlord, overly, overmanned, overmanning, overmastering, overnight, overpass, overpay, overpayment, overplay, overpopulated, overpopulation, overpower,