Maintenance period
[化] 保养周期
🧩 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
Make a right at the stop sign.
就在停车再开标志那里向右拐。
He who laughs at crooked men should need walk very straight.
正人先正己。
It has become much cooler.
天气变得凉爽多了。