look over 检查 察看 一般指仔细检查look through 看 游览 意为粗略查看因而老师检查作业一般是批改，不会是仔细察看……应该用look through
look through.....是指泛查一下而已look over是指那种检查很详细的时候才会用的
look through
look over
