What does 有效 mean?
有效
effective; valid
Its characters
- 有 to have
- 效 effect
In a sentence
这张票三天内有效。 This ticket is valid for three days.
当时，中国的文盲非常多，政府希望找到一种更有效的途径，帮助大家认汉字、说普通话。
From 拼音是谁发明的？ · Who invented pinyin? The story of Zhou Youguang
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