the thin end of the wedge

n.

1. The government says it only wants to privatize one or two railway lines, but I think it's the thin end of the wedge.They'll all be privatised soon.
政府声称只打算把一两条铁路线私有化,可是我觉得这只是个开头,很快所有的铁路都会私有化。

来自《简明英汉词典》

2. The government says it only wants to privatize one or two railway lines, but I think it's the thin end of the wedge.They'll all be privatized soon.
政府声称只打算把一两条铁路线私有化,可是我觉得这只是个开头,很快所有的铁路都会私有化。

来自《简明英汉词典》