Such a belt must be secured to anchorage points other than on the seat itself 安全带除了要系紧在座位上,还须稳固地安装在车身上。
For example , you may only need to have the upper anchorage point lowered by means of a drop plate or a booster together with the ordinary seat belt which also has an extra strap running behind the child that acts as a guide to change the lie of the diagonal belt 类似的问题,通常都可以解决,把安全带上端固定点调低或使用高垫并附有调整斜带位置的背后横带,便是办法之一。