求翻译：Helen: Isn’t there anyone at home? Jim: I’ll knock again, Helen. Everything’s very quiet. I’m sure there’s no one at home. Helen: But that’s impossible. Carol and Tom invited us to lunch. Look through the window. Helen: Can you see anything? Jim: Nothing at all. Helen: Let’s try the back door. Jim: Look! Everyone’s in the garden. Carol: Hello, Helen. Hello, Jim. Tom: Everybody wants to have lunch in the garden.It’s nice and warm out here. Carol: Come and have something to drink. Jim: Thanks, Carol. May I have a glass of beer please? Carol: Beer? There’s none left. You can have some lemonade. Jim: Lemonade! Tom: Don’t believe her, Jim. She’s only joking. Have some beer!是什么意思？

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