Progress in a variety of catalytic systems-catalyzed dimerizations of terminal alkynes to synthesize enynes is summarized.

A novel method for palladium-catalyzed cyclotrimerization of alkynes in supercritical carbon dioxide ( scCO 2 ) has been developed.

摘要研究了以超临界二氧化碳为 反应介质 溴化钯催化炔烃环三聚反应的新方法.

Addition Reactions to Alkynes, Hydrogenation , Halogenation and HX. Hydration of alkynes. Tautomerization.

炔烃的加成, 氢化,卤化和HX. 炔烃的水化作用,互变异构化.

I know nothing at all about the recent happenings there.

对那里近来发生的事我一点儿也不知道.

He'll soon phone you up and tell you all about it.

他会很快打电话告诉你那件事的.

Thanks for reminding. I'd forgotten all about his coming this afternoon.

谢谢你提醒我, 我完全忘了他今天下午要来.

"We know all about you," she said disdainfully.

“我们了解你的一切情况，”她轻蔑地说道。

"What was that all about?"— 'Damned if I know.'

“那都是关于什么的？”——“我要知道就好了。”

I married you for better or worse, knowing all about these problems.

这些问题我都知道，不管怎样我还是嫁给了你。

Maybe you'd better tell me what this is all about.

也许你应该告诉我这究竟是怎么回事。

"Hey, Judith," he resumed, "tell me all about yourself."

“嘿，朱迪思，”他接着说，“跟我谈谈你自己吧。”

If you've read my earlier memoirs you'll know all about it.

如果你读过我早期的回忆录，就全都明白了。

She knew all about my schoolwork, my hospital work etc.

她知道有关我的学业、医院工作等所有的一切。

Now politics is all about the right haircut and a sharp suit.

现在政界讲究的无非是合适的发型和时髦的衣着。

The war against drug peddling is all about cash.

禁毒斗争归根到底是钱的问题。

Adopt the project as direct fired absorption type refrigeration unit and all air system.

在方案设计中确定采用直燃型溴化锂吸收式冷水机组的冷热源方案和全空气系统.

Unless you want to live all alone, you have to deal with that!

除非是那种独自一人也能生存下去的人否则就必须学会忍受!

Walking in dark yards all alone sounds fishy to me.

独自在黑暗的院子里散步听上去很傻.

She did that all alone.

她独自一人做那事.

I laugh all alone at my complete inanity.

十分无聊时,我就独自大笑.

She must suspect, and guess, and chafe, and bear it all alone.

她只能怀疑, 猜测, 焦躁, 独自忍受着这一切.