old stuff in new concoctions的意思|示意

换汤不换药 ...换汤不换药 change the liquid but not the drugs -- a surperficial reform; a change in name only; change in form but not in content; make a superficial change; offer the same old stuff but with a different label; old stuff in new concoctions; the same old stuff with a different label 换药,换敷料 change dressings .