阻止用英语通常翻译为"prevent"或"stop". 来源方面，prevent来自拉丁语的"praevenire"，意思是"预先，先发制人"；stop则来自古英语的"stoppian"，意思是"堵塞，把……挡住"。下面给出一些例句：

请阻止他把手放进裤子口袋里。

Please prevent him from putting his hand in his pocket.

我们必须采取措施阻止他们逃脱。

We must take steps to stop them from escaping.

阻止他把手放进裤子口袋里。

Stop him from putting his hand in his pocket.

我们必须采取措施阻止他们逃脱。

We must take measures to prevent them from escaping.