Quotations within short quotations take double quotation marks.引用之中再引用使用双引号.If it contains other characters, it must be enclosed in double quotation marks.如果还包含其他的字符, 那麽这段字符必须用双引号引起来.If it contain other characters, it mu...
The professors are deliberating over the post graduates dissertations.教授们正在商讨研究生的论文.Most of the nervous students began scribbling out long dissertations.大多数学生很紧张,都开始专心地写他们的论文.The pape proposes a project of citation analy...
not have a leg to stand on的音标：not have a leg to stand on的英式发音音标为：[nɔt hæv ə leɡ tu: stænd ɔn]not have a leg to stand on的美式发音音标为：[nɑt hæv e lɛɡ tu stænd ɑn]...
溴化氢加成的最后一步,是负离子亲核试剂的附加.The addition of hydrogen bromide involves the attachment of an anionic nucleophile in the final step.关于加成的定向问题,可以一直追溯到自由基化学的起源.The problem of orientation of addition goes right back to the beginnin...