短語詞組短語Fork Backrest 雙叉靠背backrest bushing 靠背軸套adjustable backrest 可調(diào)式靠背backrest block 后立柱移動(dòng)塊backrest knob 靠背調(diào)整旋鈕Foldable Backrest 靠背可High Backrest 高靠背Backrest locking 靠背鎖Backrest design 腰墊設(shè)計(jì) 返回 backrest