?庆祝

感到高兴和骄傲 to observe 庆祝 take some time out of one's tight schedule 百忙中抽空 ..

?观察

纪弦“现代诗之我观”_科教文汇（上旬刊）_2012-1_91阅读网杂志文章阅读 关键词 纪弦 诗歌 观察 [gap=211]Key words Ji Xian;poetry;to observe

?观测

... 观测 = (scientific, etc) observation 观测 = to observe 观测卫星 = observation satellite ...

?纪念

庆祝 in celebration of；to celebrate；to observe 纪念 in commemoration of；to commemorate；to observe 总监 inspector-general；chief inspector ..