“您先请。”——“别客气，伯德先生，您先请。”"After you." — "Not at all, Mr Bird, after you."“非常感谢！”——“别客气。”"Thank you very much." — "Don't mention it."“无论怎样，非常感谢。”——“别客气。”"Thanks very much anyhow."— 'It's a pleasure.'...
这些纸用来封住墙壁和屋顶的洞。The paper was used for sealing up holes in walls and roofs.石料开始被用作盖屋顶的材料。Stone began to be used as a roofing material.我们从屋顶的小洞能看见星星。We could see the stars through an opening in the roof....