求翻译：另外美国校车的黄色虽然看起来老旧，但是这颜色是经过实践证明的最醒目的颜色，早在1939年，美国政府就立法规定一律为黄色，因为这种颜色即便在大雾中也最容易看清，因此也是最安全的颜色。另外美国法律还规定，小型校车因为受到冲撞容易出事，所以每个位置上都必须装有安全带。大型校车在座位上装配了防撞安全装置，虽然相对比较安全，但很多州也规定必须装配安全带是什么意思？

Another American yellow school bus may seem old, but this color is proven the most eye-catching colors, as early as 1939, the U.S. government to legislate a uniform yellow color, even in the fog because it is also the most easy to see, and therefore the safest color. Another U.S. law also provides t

In addition, the American School Bus yellow Although this looks old, but this color is proven the most eye-catching colors, as early as in 1939, the Government of the United States on the legislative provisions, the Attorney General as a yellow color because this is even in the fog is also the most

Moreover American school bus yellow although looks like obsoletely, but this color is the process practice proof most striking color, as early as in 1939, American Government on the legislation stipulation all was the yellow, even if because this kind of color was also easiest in the bad fog to see

United States school bus yellow, although it looks old enough, but this color is the most eye-catching colors and tested, as early as in 1939, the United States Government on the legislative provisions are in yellow, because this color even in the heavy fog is the easiest to see, and therefore the s

Another American yellow school bus may seem old, but this color is proven the most eye-catching colors, as early as 1939, the U.S. government to legislate a uniform yellow color, even in the fog because it is also the most easy to see, and therefore the safest color. Another U.S. law also provides t