Jennifer: And what's your vision?

Billy: 20/350.

Jennifer: Mine's 20/20. Life just isn't fair, is it?

Billy: Oh, yes, it is.

Jennifer: What do you mean?

Billy: You'll find out when we're in the woods and you have to go to the bathroom...

Jennifer: They don't have toilets at the campground?

Billy: Let's just say I'll have it easy...

★ vision (n.) 视力

★fair a.公平的

★mean vt. 表示...的意思

What does this sentence mean?

这句子是什麽意思?

★ toilet (n.) 厕所

珍妮花：你近视多少度?

比　利：三百五。

珍妮花：我的视力正常。人生真不公平，对吧?

比　利：错了，人生很公平。

珍妮花：你什么意思?

比　利：等到了树林你得上厕所的时候，你就会知道……

珍妮花：他们在宿营区没有厕所吗?

比　利：姑且说我会比较方便吧……