求翻译：在美国，16-18岁之前必须在学校就读。现在许多州要求必须就读到18岁。有些州只规定必须就读到14岁。学生可以进入公立学校, 私立学校或家庭学校就读。在多数公立和私立学校，教育分为3级水平：小学、初中和高中。是什么意思？

Must be enrolled in school in the United States before the age of 16-18. Many states require that they are attending to 18-year-old. Some states only require must attend to the 14-year-old. Students can enter the public school, private school or home school. Most public and private schools, educatio

In the United States, 16 - 18 years old must be preceded by the school. Now many state requirements must be in the 18-year-old. In some States, subject only to read on the 14-year-old. Students can access to public schools, private schools or home schools. In most public and private schools, educati

In US, in front of 16-18 year old must in the school study.Now many state requests must go study to 18 years old.Some states only stipulated must go study to 14 years old.The student may enter the public school, private school or family school study.In the most public and private school, the educati

In the United States, before the age of 16-18 must be enrolled at the school. Many States now require attendance until the age of 18. Some States only require attendance until the age of 14. Students can enter the public school, private school or home school. In most public and private schools, educ

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