英语口语情景对话 CATCHING A BUS

Dialogue 9  
Laurance- Is this where I catch the bus for the zoo?
Soony- You can take a T-30 from here, but then you
have to walk about six blocks.
Laurance- That doesn't sound too bad.
Soony- Actually, if you go to the bus stop in the next
block, you can take a Z-8 which will let you right
off in front of the zoo.
Laurance- Maybe that's what I'll do. Thanks a lot.
Soony- You're welcome.
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注解:
1. T-30,Z-8:都是公共汽车的编号
2. which will let you right off...:是定语从句,
其先行词是Z-8bus,意思是"这趟车正好把你拉到动物园门口".