扩大的手段

broad beans───蚕豆

broadened out───使变宽

golden means───中庸之道；[数]黄金分割（等于goldensection）

baked beans───（加番茄酱等制的）烘豆

broad bean───蚕豆

broad seals───国玺

broadbeans───蚕豆

As the training theory and training means advancing, the traditional dogs' abilities have been continuously improved, and the scope of use has been broadened.───伴随着训练理论和训练手段的日益丰富，军犬的传统作业能力不断提高，使用范围也在不断拓宽。