Expectation of life
[医] 预期寿命\\n[经] 寿命期望数
🧩 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
I would like to buy some stamps, please.
我想买些邮票。
The life of the wolf is the death of the lamb.
狼的生就是羔羊的死。
He opened it and saw the man from downstairs.
他打开门，看见楼下人。