lifetime
A lifetime is the entire period of time that a person is alive. It can also refer to the length of time that an object, like a machine, works correctly.
例句
3 / 5He lived in the same house for his entire lifetime.
He lived in the same house for his entire lifetime.
The manufacturer provides a lifetime guarantee for this product.
The manufacturer provides a lifetime guarantee for this product.
Waiting for the results felt like a lifetime!
Waiting for the results felt like a lifetime!
词族
记忆技巧
Think of the word as a sum: LIFE + TIME. It is simply the total TIME of a LIFE.
快速测验
Traveling to the moon would be a once in a _______ opportunity.
正确！
正确答案是： lifetime
例句
He lived in the same house for his entire lifetime.
everydayHe lived in the same house for his entire lifetime.
The manufacturer provides a lifetime guarantee for this product.
formalThe manufacturer provides a lifetime guarantee for this product.
Waiting for the results felt like a lifetime!
informalWaiting for the results felt like a lifetime!
Researchers are studying the effects of diet over a human lifetime.
academicResearchers are studying the effects of diet over a human lifetime.
We need to calculate the lifetime value of our current customers.
businessWe need to calculate the lifetime value of our current customers.
词族
常见搭配
常用短语
once in a lifetime opportunity
once in a lifetime opportunity
the chance of a lifetime
the chance of a lifetime
a lifetime ago
a lifetime ago
容易混淆的词
Lifespan is more technical and biological, while lifetime is used more generally for both people and objects.
Life refers to the state of being alive, whereas lifetime refers specifically to the duration of that state.
使用说明
Lifetime is usually used as a singular noun. It is very common in marketing (lifetime warranty) and in hyperbolic speech to mean a very long time.
常见错误
Learners sometimes use 'all my life' and 'my whole lifetime' interchangeably, but 'lifetime' is more often used when discussing the length or duration specifically.
记忆技巧
Think of the word as a sum: LIFE + TIME. It is simply the total TIME of a LIFE.
词源
Derived from Old English 'līf' (life) and 'tīma' (time), combined to describe the duration of an existence.
语法模式
文化背景
In many cultures, a 'Lifetime Achievement Award' is the highest honor one can receive for their career work.
快速测验
Traveling to the moon would be a once in a _______ opportunity.
正确！
正确答案是： lifetime
相关表达
相关词汇
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A1A unit of time that lasts for sixty minutes. There are twenty-four of these units in one full day.
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A1A century is a period of 100 years. It is a common unit of time used to group historical events and long durations.
interval
A1An interval is a period of time between two events or actions. It can also describe the space between two objects or musical notes.
era
A1An era is a long and distinct period of history with a particular feature or characteristic. It is used to group years together based on a specific theme, person, or invention.
age
A1Age refers to the amount of time a person has lived or an object has existed. It is also used to describe a particular period in history or a stage of life.
Wednesday
A1Wednesday is the third day of the work week, occurring between Tuesday and Thursday. It is generally considered the middle of the standard five-day working week.
Friday
A1Friday is the fifth day of the week, falling between Thursday and Saturday. In many Western cultures, it is the final day of the standard work and school week.
weekday
A1A weekday is any day of the week except Saturday and Sunday. These are typically the days when people go to work or school, covering Monday through Friday.
tomorrow
A1The day that occurs immediately after the present day. It is used to refer to the near future or a specific date following today.
daily
A1The word daily describes something that happens every day or once in every twenty-four-hour period. It is used to explain the frequency of a habit, task, or regular event.
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