跨海大橋的英文是甚麼?

因為「跨海大橋」並不一定是橫跨島與島之間的，所以我覺得用cross-sea bridge來表示比較好。

譬如說，在以下的NBC News中，就用了cross-sea bridge這個詞。

China opens world's longest cross-sea bridge

http://webcache.googleusercontent.com/search?q=cache:2L3Uo5LgXq8J:photoblog.nbcnews.com/_news/2011/06/30/6979741-china-opens-worlds-longest-cross-sea-bridge%3Flite+cross-sea+bridge&cd=4&hl=zh-TW&ct=clnk&gl=tw

2012-09-29 19:41:00 補充：
這裡則是BBC News對此「跨海大橋」的報導。用的也是cross-sea bridge.

news.bbc.co.uk/2/hi/8416141.stm

就讓我摘錄文章標題和前兩段來供版大參考cross-sea bridge和sea-crossing bridge等用法吧。

標題：China begins work on world's longest cross-sea bridge

2012-09-29 19:41:05 補充：
前兩段：

China has begun constructing a bridge to link southern Guangdong province, China's main manufacturing hub, with Hong Kong and Macau.

When completed by 2016, officials say it will be the world's "longest sea-crossing bridge" - spanning nearly 50km (30 miles).

Cross-Sea Bridge

呃..........我只知道澎湖跨海大橋的英文--
The inter-island bridge of the Penghu Archipelago
希望我的答案對你有幫助

2012-10-02 21:26:20 補充：
至於其他的跨海大橋則是cross-sea bridge