含“by the numbers”的英语例句

The checkerboard with 100 squares used in checkers has its black squares numbered 1 to 50, from right to left, on the black side, so that they initially occupy the four rows of squares identified by the numbers 1 to 20, while the white pieces stand on the four rows of squares identified by the numbers 31 to 50.
从英语翻译成西班牙语