因此，关于鸟类的起源、恐龙和早期鸟类的生物学特性等一系列未解之谜都笼罩在困惑之中。

Confusion consequently reigns over a broad spectrum of unanswered questions dealing with avian origins and the biology of dinosaurs and early birds.

youdao

经过开环、光气化、缩合等一系列反应制备了苯磺隆。

Tribenuron-methyl is synthesized via ring-opening reaction, phosgenation and condensation.

youdao

今年内还将举行波恩会议、墨西哥会议等一系列重要国际会议。

A series of important international conferences will be held in Bonn and Mexico this year.

youdao

We will debate equality and inequality, affirmative action, free speech versus hate speech, same-sex marriage, military conscription, a range of practical questions.

我们将讨论平等与不平等，平权行动，自由言论与攻击性言论，同性婚姻，兵役制等一系列现实问题。

耶鲁公开课 - 公正课程节选

There is a bias toward boys or a bias against girls there So you have to look at a lot of things about websites and software You have to look at gender, you have to look at nationality, language, accessibility, so major for issues.

一种对于男孩偏爱却对女孩偏见的态度,因此对于网页和软件,我们必须仔细观察,必须观察性别，国籍，语言，可接近性等一系列重要的问题。

麻省理工公开课 - 媒体、教育、市场课程节选

They have lots of maybe good-- maybe it's not because they're irrational, it's that they're political or they're constrained by tradition or laws or regulations, all sorts of things; but, they're not holding the tangency portfolio.

他们有很多好的原因-,也许并不是因为他们不够理性，而是由于他们有自己政治上的考虑,或者是他们本身被传统,法律以及规则等一系列的因素，所限制;,因此他们不会持有切线资产组合。

耶鲁公开课 - 金融市场课程节选