created sense approved 偷梁换柱/偷梁換柱 · tōuliánghuànzhù · substitute
偷梁换柱 / 偷梁換柱
tōuliánghuànzhù
substitute
to secretly replace original or essential elements with fakes or inferior items to deceive others or commit fraud
那个不法商家在装修中偷梁换柱，用劣质材料替换了原定的品牌建材。