名詞 commemoration:

1. a ceremony to honor the memory of someone or something
   同義詞：memorialization, memorialisation
2. a recognition of meritorious service
   同義詞：memorial, remembrance

1. People are lining up to buy commemoration stamps.
   人們正在排隊(duì)購(gòu)買紀(jì)念郵票。

com.mem.o.ra.tion

n.（名詞）
The act of honoring the memory of or serving as a memorial to someone or something.
紀(jì)念儀式：紀(jì)念某物、某人或作為紀(jì)念物提供給某人、某事的行為
Something that honors or preserves the memory of another.
紀(jì)念：對(duì)另一事進(jìn)行紀(jì)念或保存記憶的某事