He looks a little weak in the knees.

看起来他膝盖不太方便。

I am good at Maths, but I am weak in English.

我擅长数学，但我不擅长英语。

He is weak in mathematics but strong in English.

他数学不好，但是英文很强。

I'm a little bit weak in the knees, Ben.

我的膝盖有点软，本。

She was the champion of the poor and weak in society.

她是社会上穷人和弱者的捍卫者。

They were convalescing slowly and lay scrawny and weak in their bed.

她们在慢慢康复，但仍然消瘦而虚弱地躺在床上。

There its waters, still weak in temperature and color, begin to form.

在那里，尽管水温很低，水的颜色还很淡，但暖流已开始形成了。

The sector is at its weakest in two and a half years.

该行业正处于两年半以来的最低水平。

However, that protection was weaker in South Africa than in other places.

不过，其在南非的抵御性要弱于在其他地方的抵御性。

What makes one ecosystem strong and another weak in the face of change?

在面对变化时是什麽造成 某种生态系变强，另一种生态系变弱呢？

One certainly, the health care infrastructure are very weak in West Africa, under-resourced.

当然，在西非，卫生保健基础设施非常薄弱，资源不足。

I gotta say, after last night, I'm a little weak in the knees.

我得要说，在经过昨夜之后 我的双腿还在发软。

Meanwhile, consumer spending the major fuel for the economy was the weakest in four years.

同时，经济的主要推力消费者支出是四年来最差的。

It's really weak in understanding the company and competition. It doesn't pay attention to that.

但他们在理解公司和竞争方面真的很弱。他们并不会注意到这一点。

There are people who are sick and weak in the mind, and they like to harm others.

因为一些人生病或者心理很脆弱，他们喜欢伤害别人。

The benefit of this is that you can also then colour code the areas that you're weak in.

这样做的好处是，你也可以用颜色标记你薄弱的地方。

That's where I'm so often weak in the game.

这就是我在比赛中经常表现不佳的地方。

But I am not so weak in another way as you think.

但在另一方面，我并不像你想的那么软弱。

Bill's only weak in the mind space.

比尔只有在思维空间才有弱点。

So if we use med school as an example, I had a few subjects that I was pretty weak in.

以医学院为例，我有几门课是非常薄弱的。