a. producing or capable of producing an intended result or having a striking effect
s. able to accomplish a purpose; functioning effectively
s. works well as a means or remedy
s. exerting force or influence
a. 有效的, 有力的, 实际的
n. 有生力量
1. The new marketing strategy proved to be very effective.
新的市场营销策略被证明非常有效。
2. She found an effective way to study for her exams.
她找到了一个有效的复习考试的方法。
3. Regular exercise is effective for maintaining good health.
定期锻炼对保持良好的健康很有效。