trigger-happy

adj (infml derog 口, 贬) ready to react violently, esp by shooting, even when only slightly provoked 爱做出激烈反应的; （尤指）动辄开枪的.

triceps, trick, trickery, trickily, trickiness, trickle, trickle charger, trickster, tricky, tricolour (US tricolor), tricycle, trident, tried, triennial, triennially, trier, trifle, trifler, trifling, trigger, triglyceride, trigonometric, trigonometrical, trigonometrically, trigonometry, trike, trilateral, trilaterally, trilby, trilingual, trill, trillion, trillionth, trilobite, trilogy, trim, trimaran, trimmer, trimming, trinitrotoluene, trinity,