Mean lifetime
[化] 平均寿命
🧩 词语组成解析
mean
[min]
v. 表示…的意思;意思是;打算;产生…结果;
adj. 吝啬的;刻薄的;破旧的;残忍的;
n. 平均数;中间;几何平均;等比中数;
🗣️ 情景例句
If I've ever been sure of anything, I'm sure of this; your team is going to lose the same game on Saturday.
这一次我十分肯定：你们队星期六的比赛会输。
He looks much younger than he is.
他看起来比他实际上年轻得多。
and since most medical men in the Health Services are overworked and have little time for offering time-consuming and little-appreciated advice on such subjects as diet,
因为卫生部门的大多数医生都超负荷工作，所以没有多少时间提出一些既费时而又不受人欢迎的忠告，如注意饮食、