单词：enzymatical pulping
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117. I havent seen Xiao Li lately .How is he? 118. Hows your father been? 119. As a matter of fact ,he hasnt been feeling too well. 120. Im sorry to hear that.Whats the matter? 121. He has a slight fever. 122. Tell him I hope hes better soon. 123. Il
公务员英语口语
Justine Siegal has made history by becoming the first woman to pitch batting practice for a Major League Baseball team. Despite a case of nerves, the pony-tailed Siegal broke the gender barrier with spring training pitching stints for the Cleveland I
英语新闻
On the eve of the International AIDS Conference, which begins in Mexico City Sunday, researchers at the University of Texas Medical School at Houston claim to have discovered a way to destroy the HIV virus that causes AIDS. If their hopes are confir
VOA标准英语2008年（八月）
Better Living through Evolution: Nobel Prize in Chemistry This years prize is harnessing the power of evolution. The Royal Swedish Academy of Sciences has decided to award the 2018 Nobel Prize in Chemistry with one half to Frances H. Arnold for the d
2018年科学美国人10月