for one’s momentary satisfaction; just let oneself go ? 這個(gè)工作決不是～，亂打一頓，所能奏效的。(《毛澤東選集》786) We can never succeed if we just let ourselves go,and lash out at him.
痛快一時(shí)tònɡ kuài yī shí
形容只顧當(dāng)時(shí)的盡興快活，不管后果。let oneself go, for one’s momentary satisfaction