It's--even it's still your body as you eat dinner and so now some molecules have been absolved into your body that weren't there before.

即使你吃了饭,你的肉体吸收了,之前没有的分子,它还是你原来的肉体。

耶鲁公开课 - 死亡课程节选

but you also have a lot of people coming in from different parts of the United States that hadn't been there before.

你也能看到许多来自美国各个地区的人们，他们之前从没来过纽约。

这里不危险 - SpeakingMax英语口语达人

You could use the "Have you" pattern to find out if they've been there before.

你可以用“Have you”句型来询问他们之前去过的地方。

Have you 课堂 - SpeakingMax英语口语达人