undersideKK [ˋʌndɚˏsaɪd] /ˈʌndɚˌsaɪd/名詞1底面、底部、下側He checked the underside of the car for rust.他檢查車子底部有沒有生鏽。2陰暗面、負面比喻The documentary exposes the underside of the fashion industry.這部紀錄片揭露了時尚產業的陰暗面。