The curtains screen out the sunlight.窗帘遮住了阳光.Maybe he can't screen out bottom return.说不定他无法鉴别水底的反射信号.To screen out extraneous thoughts, he closed his eyes and drew a deep breath.为了摒弃种种杂念, 他闭上眼睛,深吸了一口气....
The programmer forms the heart of the process chromatograph.程序控制器是色谱仪的关键部件.The technique is known as adsorption chromatograph.这种分析技术称为吸附色谱.Figure B shows a scheme of a mass spectrometer coupled to a gas chromatograph.B是气...
I was impolite and I do beg your pardon.我失礼了，真对不起。It is impolite to ask too many questions.提出过多的问题是不礼貌的。Don't stare at me— it's impolite!别盯着我看——这是不礼貌的！...