He's a dendrochronologist: someone who analyzes tree rings, which give age and environmental info.

他是树木年代学家，主要工作是分析提供树龄和环境信息的年轮。

Okay, so three dendrochronologists walk into a bar.

露露：好的，三位树木年代学家走进一家酒吧。

Dendrochronologists are people who look at dendrites in your brain!

LULU：树突年代学家是研究大脑中树突的人！

For all of the dendrochronologists in the Americas.

LATIF：献给美洲所有的树木年代学家。

VALERIE TROUET: Because the first dendrochronologist was actually an astronomer.

瓦莱丽·特鲁埃特：因为第一位树木年代学家实际上是一位天文学家。