Do not hiss at the speaker.

不要嘘演讲人。

youdao

Even if you don't like one of the players you should not boo and hiss at them.

即使是你不喜欢其中的一个球员，你不该该对她们发出嘘声。

youdao

"If I'm in the back of the plane, I want to hiss at the people in first class, " said Mr.

“如果我坐在飞机尾部，我想对头等舱的人们发出嘘声，”纳尔巴夫说。

youdao

If they perceive you are giving them too much attention (or food, again), other macaques may snarl or hiss at you, sometimes even attacking.

BBC: Four days in Ubud: Beyond Eat, Pray, Love

It was therefore ironic that his most famous achievement was to build a typewriter at the request of the defence lawyers for Alger Hiss, who was accused in 1948 of spying for the Soviet Union.

ECONOMIST: Martin Tytell