Valid period
[化] 有效期限\\n[经] 有效期限
🧩 词语组成解析
period
['pɪrɪəd]
n. 时期;（一段）时间;学时;句号;
adj. 具有某个时代特征的;（关于）过去某一特定历史时期的;（家具、服饰、建筑等）某一时代的;
peri周围，靠近+od道路→周期
🗣️ 情景例句
I like the color. She looks good in blue.
我喜欢这颜色。她穿蓝色的很好看。
There were times of disappointment, anger, and humiliation, and there were also times of joy.
生活中有失望、生气和屈辱的时候。
Ah, yes, I remember now.
啊，是的，我现在记起来了。