王强口语 第一册 long conversation 15.2

　　B:
Bumper¹: Now, down the hall is our science lab.
Ron: (Hiding himself in the hall way) She won't even know I'm around! Here they come! I'll find a place to hide in the lab. I think I'll duck behind this...oops!
(In front of the door of the science lab)
Bumper: After you, Miss Sticker!
Kelly: Thank you! Science is one of my favorite subjects! I especially like this...rats!
Ron: Sorry! I accidentally knocked over a cage full of lab rats! Um... just pretend you didn't see me! (Ron runs out.)
 

1 bumper   

n.(汽车上的)保险杠；adj.特大的，丰盛的

参考例句：

• The painting represents the scene of a bumper harvest.这幅画描绘了丰收的景象。
• This year we have a bumper harvest in grain.今年我们谷物丰收。