He is a natural bridge culture.

河是自然，桥是文化。

youdao

From the LROC website: "How did this natural bridge form?"

LROC网站有这样的介绍：“这座天然桥梁是如何形成的？”

youdao

NASA's LROC spacecraft reveals a natural bridge on the Moon.

美国宇航局的月球轨道探测器(LROC)在月球表面拍到的一座天然桥梁。

youdao

The bridge has always been painted "International Orange" because that color went well with the natural surroundings.

VOA: special.2010.07.23

As Mr Obama pointed out, Turkey is a natural bridge between Europe and the Middle East.

ECONOMIST: America, Europe and Turkey

For an unforgettable experience, take a night walk to the arched cave and waterfall at Natural Bridge under the western ramparts of the Springbrook plateau, which is alight with fairy-like blue-green lights given off by the millions of bioluminescent glow worms that line the cave roof and the steep earth banks along the rainforest path.

BBC: Exploring Queensland��s rainforest hinterland

The more people who point out that natural gas is a bridge fuel to nowhere, the closer we get to a clean energy future.

CNN: Don't let America get 'fracked'