Conversation A
对话A
Tina: Did you know people send more than 100 billion emails a day, James?
蒂娜：詹姆斯，你知道大家一天要寄送超过一千亿封的电子邮件吗?
James: Really? That's a lot of emails!
詹姆斯：真的吗？那还真多呀！
Tina: Not only are emails fast and convenient, but they're free! They've changed how we communicate.
蒂娜：电子邮件不仅又快又方便，而且还是免费的！电子邮件改变了我们沟通的方式。
James: Yes. They let people communicate easily.
詹姆斯：是啊，电子邮件让人能够轻松沟通。
Tina: Do you remember life before emails?
蒂娜：你还记得电子邮件被发明之前的生活吗？
James: Not really. But people used to send letters and cards from the post office.
詹姆斯：不太记得了。不过，以前大家都必须到邮局邮寄信件和卡片。

Conversation B
对话B
Tina: What are you doing, Taylor?
蒂娜：泰勒，你在做什么?
Taylor: Hi, Tina. It's time for lunch. I'm heating my lunch in the microwave.
泰勒：嗨，蒂娜。午餐时间到了，我在用微波炉加热我的午餐。
Tina: Did you know the microwave was invented at the end of World War II?
蒂娜：你知道微波炉是在第二次世界大战尾声的时候发明的吗？
Taylor: I didn't know that. But I'm glad it was invented.
泰勒：我不知道。可是我很庆幸有人发明了微波炉。
Tina: Me, too. Now I can heat my food quickly.
蒂娜：我也是。这样我就能够以很快的速度加热我的食物。
Taylor: That's good because I'm really hungry!
泰勒：这点很棒，因为我真的很饿！