她吃药时药片卡在喉咙里，开始干呕起来。

The pill stuck in her throat and she started ___gagging.

新政策实际上是在通过审查制度压制言论自由。

The new policy is effectively ___gagging free speech through censorship.

为了防止他喊叫，绑匪用胶带封住了他的嘴。

The robbers used tape to ___gag him and stop him from shouting.