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 cannot forgive myself for not seeing my mother when she was sick in bed.
母亲病的时候我没能去看她，为这件事我永远不能原谅我自己。
Congratulations on your success.
我恭喜你成功了。
The captain of the Elkor ordered his men to salvage as much as possible from the wreck.
“埃尔科”号船长命令船员们尽量从沉船中打捞物品，