window-dressing
n [U]
(a) art or skill of arranging goods attractively in shop windows 櫥窗裝飾術.
(b) (usu derog 通常作貶義) presentation of facts, etc in a way that creates a good (and often false) impression 給人良好印象的展示手法(常指虛偽的)
The company's support of scientific research is just window-dressing. 這個公司支持科學研究只不過是擺樣子給人看的.