They can't even say "good morning" or pass the time of day.他们甚至不会说“早上好”或打声招呼。Good morning, sir. Can I help you?早上好，先生。您要点什么？He's really very rude; I mean, he never says " Good morning ".他实在非常粗鲁, 我的意思是他从来不说 “ 早安...
Obesity correlates with increased risk for hypertension and stroke.肥胖会增加高血压和中风发作的几率。Obesity is a major risk factor in many diseases.肥胖是引发多种疾病的重要因素。These photographs show extremes of obesity and emaciation.这些照片展现了肥胖与消瘦两个极...
Backlash against the law helped fuel the abolitionist movement and increased participation on the Underground Railroad.人们对此法案的强烈不满,为废奴运动火上浇油,也使得越来越多的人参与“地下铁路”逃亡.He began his own abolitionist newspaper,The North Star.他自己创...
In his horn solo, he kept modulating from key to key.他在喇叭独奏时不断地变调.With PWM modulating technique, two high DC voltage controllable powers are generated.利用PWM调制技术, 分别得到两个可控的高压直流电源.Non - modulating valves are also controlle...