“gummer”的英英意思

单词 gummer 释义 ▪ I. gummer1 U.S.|gm(r)|[f. gum v.2 + -er1.]a. A workman who enlarges the spaces between the teeth of a saw. b. A machine for this purpose.1859[see gum v.2].1887Sci. Amer. 26 Feb. 130 Emery vulcanite saw gummer.▪ II. gummer2|gm(r)|[f....