单词 drumlin 释义 drumlin|drmln|[app. for drumling, dim. of drum n.2]= drum n.21833[see drum n.2].1833–8J. Scouler in Jrnl. Royal Geol. Soc. Dublin I. 273 These drumlins are very common in many parts of the country, and a very fine example of their natu...