Today's report is rather more discouraging for the economy.今天的报道让人对经济更加丧失了信心。It's very discouraging to be sneered at all the time.成天受嘲讽是很令人泄气的.It's discouraging that so many students have failed.那么多学生考不及格,...
How do I determine the length of luteal phase?如何确定黄体期的长短?The transition into the catabolic or open wound phase of injury is often not clearly demarcated.从烧伤休克期转变到分解代谢或开放伤期的界线时常是不清晰的.Vapour phase chromatography has rapidl...