Attacks by one user on another user.

一个用户对另一个用户的攻击。

youdao

Even more common are attacks by mockingbirds.

甚至嘲鸟的攻击也是很常见。

youdao

Moderate drinking cuts the risk for heart attacks by 30 to 50 percent.

适量饮酒使心脏病发病风险降低30 - 50%。

youdao

But recently there's been an increase of retaliatory attacks by people on the other side, including a slightly mysterious group called the Invisible Commandos who've been operating against Gbagbo."

VOA: special.2011.04.02

He believes that a virgin like the Lady is secure or safe from the violent attacks imagined by his younger brother.

他认为像那位女士那样的处女，在他弟弟想象的,暴力袭击中是很安全的。

耶鲁公开课 - 弥尔顿课程节选

That such attacks on the greatest achievements of the west should be made by Western intellectuals is perfectly in keeping with the Western tradition.

这些对于西方灿烂文明的抨击,应该是来自西方学者们的,这与西方的传统相一致

耶鲁公开课 - 古希腊历史简介课程节选

Police say attacks by multiple perpetrators have increased by 20% in recent years in London alone.

BBC: Rape survivors open up about their experiences

The U.S. military and Iraq back al-Sadr's commitment to stop attacks by his followers.

CNN: 26,000 U.S., Iraqi troops conduct offensive

It says western tourists have been victims of vicious unprovoked attacks by gangs in Koh Phangan.

BBC: Stephen Ashton