当年 [- nián]①(过去某一时间) in those years; in those days：•¶ 这是当年白求恩大夫用的手术刀。 This is the scalpel which Norman Bethune used in those days.
•¶ 想当年， 这里还没有火车呢! Well, in those days there was no railway here.
•¶ 他的精力不减当年。 He is as energetic as ever.
②(身强力壮时) the prime of life：•¶ 她正当年。 She is in her prime.
另见 dànɡ nián。