A bridge can prove to be dangerous for a variety of reasons; either because it's very old, narrow, too high up above the land, over a quick river or if the wooden "floor" goes missing.

一座桥危不危险有各种各样的原因，比如桥太旧，太窄，离地面太高，架在一条湍急的河上，一些木制的“地板”缺失等等。

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A bridge can prove to be dangerous for a variety of reasons; either because it's very old, narrow, too high up above the land, over a quick river or if the wooden "floor" goes missing.

一座桥危不危险有各种各样的原因，比如桥太旧，太窄，离地面太高，架在一条湍急的河上，一些木制的“地板”缺失等等。

youdao