:这里讲解附上三个很典型的短语,都表示纪念……
1.keep sth. as a souvenir;

留个纪念
例句:My friend gave me his picture as a keepsake before going away.
2. in honor of 为了纪念……
例句:They held a party in honor of John.
They held a party to honor John.
3. in remembrance of
为纪念……
In remembrance of the battle, we set up a museum.

想表达纪念留念用memory比较好。
memory 英[?mem?ri] 美[?m?m?ri]
n. 纪念;记忆,记忆力; 回忆,往事; [计] 存储器,内存;
[例句]The congress opened with a minute's silence in memory of those who died in?
thestruggle.
代表大会开幕时进行了一分钟的默哀,以纪念在斗争中牺牲的人。
remember 英[r?memb?(r)] 美[r?m?mb?]

vt. 记得; 牢记;
vt. 记着; 纪念; 回想起; 送钱[礼物]给…;
[例句]You wouldn't?remember?me. I was in another?group
你不会记得我。我那时在另外一组。


