seikan tunnel

基本解釋

This would exceed the combined lengths of the two longest undersea tunnels on Earth, the Seikan Tunnel and the Channel tunnel.
這將超過(guò)地球上兩個(gè)最長(zhǎng)的海底隧道青函隧道和英法隧道的長(zhǎng)度總合。
Thee tunnel has overtaken Japan's 53.9km Seikan rail tunnel as the longest in the world and pushed the 50.5km Channel Tunnel linking the UK and France into third place.
這條隧道超越了此前的世界之最--日本全長(zhǎng)53.9公里的青函海底隧道，將全長(zhǎng)50.5公里的英吉利海峽隧道擠到了第三的位置。
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The Tsugaru Strait separates Hokkaido from Honshu, although the two islands are connected by the underwater railway Seikan Tunnel.
津輕海峽連接了北海道和本州島，同時(shí)青函海底隧道也將兩個(gè)島嶼緊密相連。