A burro is carrying salt of one large bag backcross a river.有一头驴子驮着一大袋子盐过河.The method can be conveniently applied to practical backcross breeding programs.该方法可以很方便地应用于实际的回交育种....
你知道那仅仅是近似值。That's just an approximation, you understand.上述估算结果只能是粗略的近似值.Such estimates should be considered only as crude approximations.应用至今的黑圆盘近似值虽然再现了概貌, 但不能再现更为详细的细节.The black - disk approximation used so far re...