1.But they have never thought of the following scene: the chimney at the top of the kitchen might break, the fire might leap up to the roof and the burning purling might destroy their nests.
它们完全没有考虑到：炉灶上的烟囱有可能会炸裂，火苗将会窜上屋梁，烧着的椽将会摧毁它们的巢穴。
2.But they have never thought of the following scene: the chimney at the top of the kitchen might break, the fire might leap up to the roof and the burning purling might destroy their nests.
它们完全没有考虑到：炉灶上的烟囱有可能会炸裂，火苗将会窜上屋梁，烧着的椽将会摧毁它们的巢穴。
3.The water from the fields is rushing in numberless, 20 purling streams to the river.