Indoor pollution can be divided into two types: visible contamination with a distinct odour, and invisible, odorless pollution.

The pollution lingers in the air because the village's deep valley location makes it difficult for contaminants to disperse and sit in the atmosphere.

污染在空气中久久不散，因为村庄的深谷位置使得污染物难以扩散，并停留在大气中。

A complex brew of pollutant is generated by cities.

城市产生一种复杂的污染物混合物。

The congested roads in California are a major source of air pollutant.

加州拥堵的道路是空气污染物的一个主要来源。

The concentration of airborne contaminants surpasses widely acceptable thresholds by a factor of ten or greater.

空气中污染物的浓度超过了普遍可接受标准的十倍以上。

Bathing in unclean pools can expose swimmers to harmful contamination.

在不干净的水池中游泳可能会让游泳者接触到有害的污染物。

Currently, there are many restrictions that hamper the development of multilateral trade.

目前多边贸易的广泛开展, 还有着诸多的限制.

Global economics is a multilateral affair today, a dance with several partners.

今天的全球经济是一种多边关系,众国必须共舞.

This trade is a multilateral compensation, also known as hands compensation.

这种贸易就是多边补偿, 也叫转手补偿.

What are you doing there, you young monkey?

你在那干啥呀, 你这个小精怪?

What do you want with diamonds?

你要钻石干啥?

What were you doing when the UFO landed?

当不明飞行物着陆时,你正在干啥?

What are friends for if I can't help?

假如我不能帮忙,那麽朋友是干啥用的 呢 ?

Ok, go take your time!

好的, 你该干啥干啥去!

He stems from curiosity, ask Aidegan plans to do what?

他出于好奇, 便问艾德干打算干啥?

Classmate standing here ? Go, let's play happily, have a relaxation!

同学乙:还楞着干啥 呀 ?走, 好好玩玩去, 放松一下! (拖着张宇:就要走)

Look! What are they doing? Is this Action Art?

看看这是在干啥? 行为艺术 吗 ?

" What have you been doing today? " " Oh, nothing, just fucking off. "

“ 今天你在干什么? ” “ 哦, 没干啥, 只是在闲混. ”

Go dawn and see what the children are doing downstairs, will you ?

下去看看孩子们在楼下干啥, 好 吗 ?

He in competition para-position alliance top big vanguard-- Jianeite.

他将在比赛中对位联盟顶级大前锋 —— 加内特.

But then Kevin signed an astronomical nine-digit extension, and things got funny.

当加内特以九位的天文数字与球队续约后, 事情变得有趣了.