其中原因有以下两个。

It has arisen for two main reasons.

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而生物技术制药可以提供抵抗这一灾难的利器，其中原因有二：第一，这些技术非常难摹仿，所以被称为“生物相似药”的普通替代品很难进入市场；

Biotech drugs provide something of a hedge against this coming calamity, for two reasons. First, they are much harder to copy, so generic equivalents (called "biosimilars") will be slow in coming.

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本周美国选民的投票数量突破了历史纪录，其中原因很多，有一个就是他们对曾经辉煌无比的城市形象已然黯淡无光而感到愤恨。

This week Americans voted in record-smashing numbers for many reasons, but one of them was an abhorrence of how their shining city’s reputation has been tarnished.

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This is one-- Therapists ask for money for all sorts of reasons, including they like money.

这是一个…,心理医生收钱的原因有很多，其中一个就是他们喜欢钱。

耶鲁公开课 - 心理学导论课程节选

There's a lot of interest in bone marrow and the stem cells that come from bone marrow and there's a couple of reasons for this.

人们对骨髓以及从骨髓中,提取的干细胞有着浓厚的兴趣,这其中有多种原因

耶鲁公开课 - 生物医学工程探索课程节选

- And one of the -- there are really two reasons.

其中之一--有两个原因。

麻省理工公开课 - 热力学与动力学课程节选