[jì niàn]
（表示怀念） commemorate; mark
commemorative activities
纪念活动
observe International Children's Day
纪念国际儿童节
hold a commemoration meeting
举行纪念大会
We caused a medal to be struck in commemoration of this discovery.
我们铸造了一枚徽章来纪念这个发现。
（纪念物） souvenir; keepsake; memento
keep sth. as a souvenir
留个纪念
My friend gave me his picture as a keepsake before going away.
我的朋友在离别前给我一张照片留作纪念。
（用来表示纪念的） commemorative