那个评论者在论坛上假装中立，实际上是在为那款手机应用做托儿。

The reviewer pretended to be neutral on the forum but was actually ___shilling for that mobile app.

那位在社交媒体上大力推荐这款护肤品的博主其实是品牌方的托儿。

The influencer promoting this skincare product turned out to be a ___shill paid by the brand.