求翻译：作为校长，应注意校园安全，并且师生共同重视。严禁校园骑车。教学区内，不得进行球类活动。上下楼梯，靠右慢行。教室无人，确保窗关门锁。上学及回家路上遵守交通规则。是什么意思？

As principal, should pay attention to campus safety, and joint attention of teachers and students. Cycling is prohibited on campus. Teaching areas, not to ball games. Up and down the stairs, right, slow. No one classroom to ensure that locks the window shut. School and on the way home to comply with

As principals, teachers and students should take note, and campus safety joint attention. Forbid campus biking. Teaching in the district shall not be carried out, ball games. stairs on slow-moving, and keep right. To ensure that no classroom window closed their doors locked. On the way home from sch

As principal, should pay attention to the campus security, and the teachers and students take together.Forbid strictlys the campus riding a bicycle.In the teaching area, does not have to carry on the ball games activity.About the staircase, depends on the right slow line.Classroom nobody, guarantees

As President, should pay attention to campus safety, and common attention between teacher and students. Campus bike is strictly prohibited. Teaching district, proceed with ball games. Manage stairs, right slowly. Classroom unattended, ensure that window shut door locks. Way back home to school and a

As Chancellor should note that school security and common teachers and students attention. Campus bike is strictly prohibited. Teaching in the region, not to carry out sports activities. Up and down the stairs, on the right slowly. Classroom unattended, ensure that window shut door locks. Way back h