the smallest of the four main islands of Japan; to the south of Honshu and to the east of Kyushu; separated from Honshu by the Inland Sea; forested and mountainous
Shikoku的用法和樣例：
例句
用作名詞 (n.)
Shikoku is the latest version of the military. 是四國軍旗的最新版本。
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