"I don't see how it happened," he remarked.

“我不明白这是怎么发生的。”他说。

youdao

No matter how it happened, millions of Americans are putting their health, quality of life and even length of life in danger.

无论如何，数以百万计的美国人正将他们的健康、生活质量甚至寿命置于危险之中。

youdao

No matter how it happened, millions of Americans are putting their health, quality of life, and even length of life in danger.

无论如何，数以百万计的美国人正将他们的健康、生活质量甚至寿命置于危险之中。

youdao

No one is sure how it happened.

VOA: special.2009.01.27

Often,we just don't know how it got it, and it just happened because somebody just said, "It's authoritative. It must've been written by an apostle."

我们通常都不知道它是如何来的，它已经成了事实，因为有人说，“它具有权威，肯定是由一位使徒所写“

耶鲁公开课 - 新约课程节选

exactly what happened and how that happened and I wrote the whole article on it.

具体发生了什么，怎么发生的，我写了一整篇文章。

研究美国经济 - SpeakingMax英语口语达人

Any injury on tour is really frustrating, especially when you can't remember how it happened.

BBC: Martyn Williams column

"I don't know how it happened, " Malik insisted, after asking not to be named.

CNN: Local diplomacy wins in tense Syria prisoner exchange

State party executive director John Foster welcomes Craig's resignation, but he was surprised by how it happened.

NPR: Idaho Begins Process of Replacing Sen. Craig