ReadWriteQuiz
Chinese dictionary
v.be effective; be valid; be good for
该方法果然有效。
This method proved really effective.
这个指示仍有效。
The directive still holds good.
这张车票2日内有效。
This train ticket is valid for two days.
有效管理
effective management
有效措施
effective measures
有效的版权
valid copyright
有效的日期
effective date
有效承保
valid guarantee
synonym
antonym