名詞 year:

1. a period of time containing 365 (or 366) days
   同義詞：twelvemonth, yr
2. a period of time occupying a regular part of a calendar year that is used for some particular activity
3. the period of time that it takes for a planet (as, e.g., Earth or Mars) to make a complete revolution around the sun
4. a body of students who graduate together
   同義詞：class

1. He is 16 years old.
   他16 歲了。
2. I've known her for years.
   我認識她好幾年了。

year

n.Abbr. yr.,y.（名詞）縮寫 yr.,y.

The period of time during which the earth completes a single revolution around the sun, consisting of 3'5 days, 5 hours, 49 minutes, and 2 seconds of mean solar time. In the Gregorian calendar the year begins on January and ends on December 3 and is divided into 2 months, 52 weeks, and 3'5 or 3'' days.Also called calendar year
年：地球完成圍繞太陽運轉(zhuǎn)一周的時段，由3'5天、5小時、49分和2秒組成的平均太陽時，根據(jù)格里高利歷，一年開始于月日結(jié)束于2月3日，被分成2個月、52個星期、3'5天或3''天也作 calendar year
A period approximately equal to a year in other calendars.
年：在其它歷法中約相當于一年的時間
A period of approximately the duration of a calendar year:
年：大約相當于一歷年的時間：
例句：
We were married a year ago.
我們一年前結(jié)的婚

A sidereal year.
一恒星年
A solar year.
一太陽年
A period equal to the calendar year but beginning on a different date:
年度：與歷年長度相等但初始日不同的時期：
例句：
a tax-reckoning year; a farming year.
稅務(wù)結(jié)算的一年；農(nóng)耕年

A specific period of time, usually shorter than 2 months, devoted to a special activity:
年度：專門用于從事某項活動的時期，通常短于2個月：
例句：
the academic year.
學(xué)年度

years Age, especially old age:
years 年齡，尤指老年：
例句：
I`m feeling my years.
我覺得年紀大了

years An indefinitely long period of time:
years 不確定的很長一段時間：
例句：
it`s been years since we saw her.
我們已經(jīng)有好幾年沒有見到她了

來源：
Middle English yere
中古英語 yere
from Old English gôar * see yôr-
源自 古英語 gôar *參見 yôr-