他们安装了一个安全摄像头作为对小偷的威慑。

They've installed a security camera as a ___deterrent to thieves.

政府援助可能成为工作的阻遏因素。

Government assistance can act as a ___deterrent to working.

惩罚的威胁是对犯罪的强大威慑。

The threat of punishment is a strong ___deterrent against crime.