1.
Anno mundi(in the year of the world).
公元纪年，创世纪年
2.
On Confucian Chronology and Huang Di Chronology in the Late Qing Dynasty
论晚清“孔子纪年”与“黄帝纪年”
3.
A100th anniversary or a celebration of it.
百周年纪念百周年纪念或百周年庆祝
4.
You're still young and impetuous.
你年纪轻，性子急。
5.
She was young and lusty.
她年纪轻，力气大。
6.
in the eighties of the twentieth century
在20世纪80年代
7.
commemorate May 4tb Youth Day
纪念“五四”青年节
8.
In respect of age, I am his senior.
论年纪, 我比他大。
9.
Between the middle nineteen-thirties and the nineteen-eighties,
从20世纪30年代中期至20世纪80年代，
10.
A specially celebrated anniversary, especially a50th anniversary.
周年纪念具有特殊庆祝意义的周年纪念，尤指50周年纪念
11.
golden wedding
金婚纪念(西方风俗, 纪念结婚五十周年)
12.
silver wedding anniversary
ph.1. 银婚纪念(结婚25周年纪念)
13.
New Expand of the 1980 s on-the-spot Literature;
20世纪80年代纪实文学的新拓展
14.
Do you know how old he is?
你知道他有多大年纪吗？
15.
How old are you, Tom?
汤姆，你多大年纪了？
16.
I am twice older than he.
我的年纪比他大两倍。
17.
He is too young to go to school.
他年纪太小,还不能上学。
18.
Grandfather is quite old and a bit hunchbacked.
祖父年纪大了, 背有点驼。