话说一精神病院有两个神经病，他们想要逃出精神病院，但是那个精神病院有99道墙，非常难爬！
俩神经病在一夜黑风高夜行动了，他们爬啊爬啊爬，爬到第30道墙时，甲对乙说：“你累了没有？”乙说：“我没累。”于是他们继续爬。在爬到第60道墙时，甲又问乙：“你累了吗？”乙仍然回答：“我还好，没累！”到了第70道墙时，甲又问了乙：“你累了吗？”乙仍然回答：“我没累！”
终于，他们爬到了第99道墙，这时，甲问乙：“你累了吗？”乙说：“哦！我太累了！”
于是，他们就回去了......
请把这段笑话翻译成英文，我在英语课演讲上要用，因为我是高一，所以翻译时的单词请尽量不要有太多对于一个高一学生而言的生词......（最好翻译时用的单词都是在高一时能学到的）
不需要每一句都准确，只要翻译出来后是这个笑话的意思就行！我星期一就要用，所以请快一点！！
话说一精神病院有两个神经病，他们想要逃出精神病院，但是那个精神病院有99道墙，非常难爬！
There were two mental patients in a mental hospital. They wanted to escape, but there were 99 walls around the hospital, so escaping would be very difficult.
俩神经病在一夜黑风高夜行动了，他们爬啊爬啊爬，爬到第30道墙时，甲对乙说：“你累了没有？”乙说：“我没累。”于是他们继续爬。
The two mental patients made their move on a dark and stormy night. They climbed one wall after another. When they reached the 30th (thirtieth) wall, A asked B, “Are you tired?", B said, "No, I'm not." So they kept climbing.
在爬到第60道墙时，甲又问乙：“你累了吗？”乙仍然回答：“我还好，没累！”到了第70道墙时，甲又问了乙：“你累了吗？”乙仍然回答：“我没累！”
When they reached the 60th (sixtieth) wall, A asked B again, "Are you tired?", B still replied, "I'm fine. I not tired yet." At the 70th (seventieth) wall, A asked B once more, "Are you tired?", B gave him the same answer, "No, I'm not tired!"
终于，他们爬到了第99道墙，这时，甲问乙：“你累了吗？”乙说：“哦！我太累了！”
Finally, they reached the 99th (ninety-ninth) wall. At that time, A asked B, "Are you tired?", B answered, "Oh! I'm exhausted!"
于是，他们就回去了......
So, they went all the way back......