親愛的朋友很高興為您解K12或K-12，是kindergarten through twelfth grade的簡寫，是指從幼兒園（Kindergarten，通常5-6歲）到十二年級（grade 12，通常17-18歲），這兩個年紀(jì)是美國、澳大利亞及English Canada的免費(fèi)教育頭尾的兩個年紀(jì)，此外也可用作對基礎(chǔ)教育階段的通稱。
Kay through 12 或 Kay 12。K12的英文發(fā)音Kay through 12 或 Kay 12。K12的英文解釋K-12 is the North American designation for primary and secondary education. The expression is a shortening of Kindergarten through 12th grade,the first and last grades of free education in the United States and English Canada.
