禁止某人说话用英语怎么说？

禁止某人说话

to gag someone

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

gag

n. 塞口物，（牲畜的）口衔，言论限制，恶作剧，张口器；vt. 塞住…的口，抑制言论自由，使窒息，用张口器将嘴张开；vi. 作呕，窒息，开玩笑，说俏皮话；

例句
His captors had put a gag of thick leather in his mouth.
劫持者用一块厚厚的皮革堵住了他的嘴。

someone

pron. 某人，有人；n. 某个人；

例句
This was clearly a failure by someone who thought he was above failure...
这显然是认为自己根本不会失败的人所遭遇的一次失败。