adj.平滑的
動詞smooth的過去式和過去分詞.
To minimize the amount of filler in the crack, we glued some wood into the split first, and then smoothed a thin coat of filler over the repaired surface. 為盡量減少填料的裂紋數(shù)量，我們把一些粘分裂第一木材，然后在平滑的表面修復填料薄外套。
