powerful/ˋpaUɚfəl; ˈpaʊəf$l/adj 1 able to control and influence people and events [ powerless ] 有势力的﹐权力强大的: the most powerful man in Hollywood 好莱坞最有权势的人rich and powerful nations 富强的国家2 having a lot of physical power, strength, or force 强健的﹔强大的﹔有力的: The engine is extremely powerful. 这台发动机功率极大。powerful weapons 强大的武器a powerful voice 洪亮的嗓音3 having a strong effect 很有效的: a powerful argument 有说服力的论据a powerful influence 巨大的影响力powerful drugs 强效药物 —powerfully adv
powerfuladjective1having a lot of strength or power: The car has a very powerful engine. The president is very powerful.2having a strong effect: a powerful drug