A good word to describe a loose cannon is unpredictable.

形容" loose cannons" 一个很恰当词就是" 不可预知（unpredictable）" 。

But I would not describe a loose cannon as fickle.

但是我不会形容难以控制人反复无常。

In Jerusalem, police and soldiers use water cannon against demonstrators.

在耶路撒冷，警察和士兵使用高压水枪对付示威者。

The riot police had been using water cannons and tear gas.

防暴警察已经使用高压水枪和催泪瓦斯。

Adam's very talkative, but he's a loose cannon at times.

亚当是个很健谈人，但有时他说话不经脑。

The police use water cannon to disperse crowds in another city Mandalay.

在另一个城市曼德勒，警察使用了高压水枪驱散人群。

And you don't want that? You don't want a loose cannon?

你不希望要那样人吗？你不想要一个我行我素员工？

Protesters set fire to barricades while police used water cannon to disperse them.

抗议者点燃了路障，同时警察在用高压水枪驱散他们。

She had a clipper bow, and on her foredeck was mounted a three-inch cannon.

她有一个流线型船头，前舱上还装备了一门三英寸高。

In the capital Naypyidaw, police did use water cannon to try to disperse protesters.

在首都内比都，警察确实使用了高压水枪驱散抗议者。

It also had a secondary 75 mm cannon, as well as one machine gun.

它还有一门 75 毫米副，以及一挺机枪。

In the Netherlands, police fired water cannon to clear protesters from Amsterdam's Museum Square.

在荷兰，警察用高压水枪驱赶阿姆斯特丹博物馆广场上抗议者。

Police used water cannon and tear gas in Paris to push back stone throwers.

巴黎警方用水枪和催泪瓦斯疏散扔石头者。

French police fired tear gas and water cannons on protesters defending migrants in northern France.

法国警方向保卫法国北部移民抗议者释放催泪瓦斯和水弹。

Delta, ready the dancers and dove cannon.

伙计们 让舞者和鸽就位。

I'm sorry, we have a positron cannon?

抱歉 我们还有正电？

Riot police in Turkey have fired water cannon and teargas at thousands of demonstrators in Istanbul.

在土耳其首都伊斯坦布尔，防暴警察用水枪和催泪弹对付数千名游行者。

The positron cannon is ready to fire.

正电准备好了。

That ship is armed with Kryptonite cannons.

那艘飞船配备了氪星石。

Security forces fired tear gas and water cannons at these protesters marching on the president's home.

安全部队向在总统家游行抗议者发射了催泪瓦斯、水。