When the plane was waiting at the airport a big snake climbed up the steps and into the plane.It
问题描述：
When the plane was waiting at the airport a big snake climbed up the steps and into the plane.It
答
当飞机停留在机场时，一条大蛇爬上了台阶，进入到飞机里去了
答
当飞机在机场等候/停留时，一个大蛇爬上了楼梯（登机的那种），并进入了飞机里
答
当一架飞机停在飞机场的时候一条大蛇爬上飞机的*进了飞机里面.