interstate highway
US /ˈɪntərsteɪt ˈhaɪweɪ/
UK /ˈɪntərsteɪt ˈhaɪweɪ/

1.
州間高速道路, 高速道路
a major divided highway with controlled access, connecting two or more states, part of the U.S. Interstate Highway System
:
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We took the interstate highway to get to the next city quickly.
次の都市へ早く行くために州間高速道路を利用した。
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Construction on the new interstate highway is expected to be completed next year.
新しい州間高速道路の建設は来年完了する予定です。