- powerful
 - ['pauəful]
 - adj. 强大的;强有力的
adv. 很;非常 
反义词
           - a. powerless
 
参考例子
           - 1.I think that is very powerful for young people.
 - 我认为这对年轻人来将是非常有力的。
 
- 2.I think both the responsibility and true love is the most powerful insurance.
 - 我认为双方的责任与真心就是爱情的最有力的保险。
 
- 3.This year at Copenhagen, we have a powerful opportunity to get on the right side of history.
 - 今年在哥本哈根,我们拥有一次强有力的机会站在历史的正确的一方。
 
英文解释
           - adj.
 - 1.having great power or force or potency or effect
 - 2.strong enough to knock down or overwhelm
 - 3.having great influence
 - 4.(of a person) possessing physical strength and weight; rugged and powerful
 - 5.displaying superhuman strength or power
 
- adv.
 - 1.(Southern regional intensive) very
 
网络释义
               - powerful
 - 强有力的; 功效强大的; 强大的; 强有力的,高倍率的;
 
- powerful drug
 - 剧药;
 
- powerful explosive
 - 猛烈炸药; 烈性炸药;
 
- powerful machine
 - 强力电机;
 
- POWERFUL CHI
 - 盛强之气; 盛强之气 音乐;