Filter aids

filter ['fɪltɚ]

n. 滤波器;滤光器;滤色镜;[化] 过滤器; vi. 过滤;透过;渗透; vt. 过滤;滤除;

AIDS [eidz]

abbr. acquired immune deficiency syndrome 获得性免疫缺乏综合征（爱滋病）;acute infectious diseases 急性传染病;aircraft integrated data system 飞行器集成数据系统; n. 助手( aid的名词复数 );外援;辅助设备vi.;帮助;

Did they write some bad news?

他们写了什么坏消息吗？

Please do not touch the wet paint.

油漆未干，请勿触摸。

I suggest that we ask users of this machine what they think about it. We can photograph them using it too. Then we can put their comments at the top of the advertisement in big print. We can bring in some humour too. People enjoy reading humorous ads.

我建议我们征询计算机用户的意见。我们也可以把他们使用计算机的情形拍成照片。然后我们把他们的意见用粗体字印在广告上面。我们还可以加入一些幽默故事。人们喜欢幽默的广告。