Jack: Did you know that drinking beer helps you sing better?

Ryan: Are you sure? How do you know?

Jack: Well, usually people think I'm a terrible singer, but after we all have a few beers, they say I sound a lot better!

Ryan: Well, I heard that if you drink enough beer, you can speak foreign languages better...

词汇注释
help sb do 帮助某人做某事
I helped her to carry her cases up the stairs.
我帮她把箱子抬到楼上。

terrible a. 糟糕的，很差的
Your writing is terrible.
你的字写得很糟糕。

sound vi.似乎；听起来
His explanation sounds all right.
他的解释似乎有理。
参考译文
杰克：你知道喝啤酒会让你唱得更好吗？

雷恩：你确定？你是怎么知道的？

杰克：大家通常都觉得我唱歌很难听，不过等大家几杯啤酒下肚后，他们就说我唱得好听多了！

雷恩：呃，我听说过如果你啤酒喝得够多，连外语都能说得比较好……