He said weasels only attack chickens and other domestic fowl when they are starving and no other food source can be found.

他表示，只有在饿得不行而又找不到其他食物的时候，黄鼠狼才会袭击鸡和其他家禽。

youdao

And while the beetles only attack mature trees, entomologist Jesse Logan argues that young trees can't do what the mature trees do.

而且甲虫只攻击成熟的树木，昆虫学家杰西洛根指出年轻的树的作用根本不及成熟的树。

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The giant water bugs are known to only attack moving prey so it is likely that the 58mm insect captured and killed the young turtle before feeding on it.

我们知道巨型水蝽只攻击移动的猎物，所以这只58毫米长的昆虫可能是先抓住并杀死这只幼小的金线龟后才开始食用它。

youdao

He says that instead of using professionals, al-Qaida is finding people who are ideologically motivated and well-placed to attack, but who receive only rudimentary training.

VOA: standard.2010.05.05

The argument is exactly the same for Nietzsche, only he shifts the ground of attack.

这和尼采的观点完全相同，只是他转移了关注点。

耶鲁公开课 - 文学理论导论课程节选

The attack began not all that long ago, really only as late as the seventeenth century.

攻击并未太慢开始，早在十七世纪就开始了。

耶鲁公开课 - 政治哲学导论课程节选

The first is that this will only attack part of the problem, the expensive one true, but only the doctors part.

FORBES: Bending The Health Care Cost Curve: Fire the Doctors

In other words, Obama was headed into a debate where his premises would not be challenged, his opponent clearly does not have the same level of expertise and could only attack him on peccadilloes.

FORBES: The Disastrous Foreign Policy Non-Debate Where Obama Crushed Romney

Those who will want only to attack will have no place to hide.

FORBES: Algeria Attack Shows The Arab Spring Morphing Into The War On Terror