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life-time的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Noun:
-
the period during which something is functional (as between birth and death);
"the battery had a short life"
"he lived a long and happy life"
life-time的用法和样例：
例句
用作形容词 (adj.)
- The terrible experience had scarred him for life.
这一可怕的经历给他留下了终身的创伤。 - He was facing a life of toil and drudgery and vexation.
摆在他面前的是终身的苦役和折磨。
用作名词 (n.)
- The starvation and thirstiness tolerance of adults was described as the mean survival time.
以平均存活时间作为桔小实蝇饥渴耐受能力的指标。 - Conclusions Bone marrow mesenchymal stem cells could increase the proportion of neurons in differentiation of neural stem cells and prolong the survival time of neurons.
结论骨髓间充质干细胞能提高神经干细胞分化为神经元的比例，还能延长神经元的存活时间。
词汇搭配
- half life time 半衰期
- active life time 有效使用期
- component life time 元件寿命
- life-time service 长期使用
- fatigue life time 疲劳寿命
- average life time 平均使用期限,平均寿...
- life time of chain reaction 链反应期限
- bulk life time 整体寿命
- life time 使用期限
