Longevity of life
[化] 长使用寿命
🧩 词语组成解析
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
life
[laɪf]
n. 生活，生计;生命，性命;一生，寿命;人生，尘世;
🗣️ 情景例句
Don't beat around the bush.
别兜圈子了。
Woe to him that is alone.
孤独的人最苦恼。
You must get up and get ready for school. If you don't go soon,you'll be late.
你得起床准备上学了。你如果不赶紧去，就该迟到了。