He was a weak little mouse of a man.

他是个懦弱无能的人。

《牛津词典》

In spite of his disappointment, he managed a weak smile.

尽管他很失望，他还是勉强露出一丝淡淡的微笑。

《牛津词典》

Grace poured a cup of weak tea.

格莱斯倒了一杯淡茶。

《柯林斯英汉双解大词典》

A captain,of all things! Who could have dreamed that they would place such a responsibility on such weak shoulders as his.

VOA: special.2010.03.27

So I'm going to wave my hands at what one fflush of these things here does, fflush here, but I decided this is kind of a weak implementation.

所以我将向这些东西所做的挥手,这里的，但是我觉得这是个有点无力的实现。

哈佛公开课 - 计算机科学课程节选

So what we see is a bond order of 0, and again, the bond is very, very weak.

我们看到键序是0，同样的，键非常非常的弱。

麻省理工公开课 - 化学原理课程节选

However, something is amiss, when, in the service of advocating a particular policy, activists and health authorities have to base their claims on a weak body of evidence and ignore a much stronger and more rigorous body of painstakingly accumulated data, which helps put the matter in perspective.

FORBES: Do Smoking Bans Really Save Lives? If So, Whose?

This is a major drawback because sticking with a weak mix of funds for a year in a downbeat market is a recipe for disaster.

FORBES: Start Saving For College Now

Two teams of engineers, one funded by the state of Louisiana and one based at the University of California, Berkley, have previously put the blame on the Army Corps of Engineers and on a weak layer of ground below the canal walls.

NPR: Panel's Report Assigns No Blame in Levee Failures