The birdhouses people make help keep them safe.这些人造的鸟舍可以使它们感到安全.Country wallpaper and border include apples , birdhouses, washboards, outhouses, roosters and so much more.乡村壁纸和它的边缘的图案都包括了苹果、鸟笼 、 洗衣板 、 外屋 、 公鸡等等....
Scientific opinions are not carved on tablets of stone; they change over the years.科学观点并非一成不变;它们随着时间而改变。...the different challenges of their career, their need to change, to evolve, blah blah blah.他们的职业面临的各种不同的挑战，需要求变，需要...