我查了一下yahoo 1 捷安特的boulder 2 美国的地名-博得 3 我从一些翻译 文章看来的----应该是大石头 巨石的意思 wiki里面有一篇其中一段 In geology, a boulder is a rock with grain size of usually no less than 256 mm (10 inches) diameter. While a boulder may be small enough to move or roll manually, others are extremely massive. In common usage, a boulder is too large for a person to move. Smaller boulders are usually just called rocks or stones.。