adverb 下载 🔗分享 大约,左右。 Abbreviation of circa. Examples : "The old church was built ca. 1880, so its exact age is unknown. " 这座老教堂大约建于1880年,所以它的确切建造年份并不清楚。 time history language 与AI对话词汇游戏阅读练习