我查了一下yahoo
1 捷安特的boulder
2 美國的地名-博得
3 我從一些翻譯 文章看來的----應該是大石頭 巨石的意思
wiki裡面有一篇其中一段
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.
