单词:unitarily equivalent self-adjoint operator
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MUSICaa.mp3/MUSIC TITLENew Words/TITLE ||1 emquitter/em |n. |[C] sb. who gives up easily |轻易放弃的人 ||||He is by no means a quitter; he never gives up easily. |他决不是轻易放弃的人,他从不轻言放弃。 ||||Don't be a quitter
Unit 14 DIALOGUE I Two Kinds of Brain A: This is the age of electronic invention. Every day you see fancy gadgets entering our lives... all kinds of electronic gadgets that were beyond our imagination
The Biggest Threat to the Role of Police Officers (The Biggest Threat to the Role of Police Officers) Every summer about a dozen journalists gather at a former army training camp north of London to spend the day watching the traini
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defensive a.防御性的 We need both defensive and offensive weapons to face attacks from neighboring countries. 我们需要防御性及攻击性的武器以对抗邻国的攻击。 defensible a.可防御的 A castle built on a high mountain is eas