movable side guards

例句：

1. 1. The car has a movable side guard to protect the driver's seat from damage.
   这辆车有一个可移动的侧边护板，用来保护驾驶座不受损害。
2. 2.The construction site had to install movable side guards to prevent workers from falling off the scaffolding.
   工地不得不安装可移动的侧边护板，以防工人从脚手架上摔下来。
3. 3.The new design of the car features movable side guards that can be adjusted according to the size of the passengers.
   这款新车的设计中包含了可调整的侧边护板，可以根据乘客的身高来调整。