单词 tonnel 释义 † tonnel, -ell Obs.Also 4 tonele, 4–7 tonel, 5 tonell.[Earlier form of tunnel, a. OF. tonel, tonnel, mod.F. tonneau, deriv. of tonne cask, med.L. tonna, tunna. The corresponding med.L. form was tonnellus masc., but the more usual and n...