The Kinmen and Mazu island groups have continuously been Chinese territory, unlike Formosa and the Pescadores. Under the Japanese peace treaty, Formosa and Pescadores have an inchoate juridical status.
與台灣和澎湖不同，金門和馬祖群島一直是中國領土。 根據日本和約，台灣和澎湖列島的法律地位尚未完全發展。
Telegram: The Secretary of State to the Dept. of State
Date: September 27, 1954
Subject: Discussions with British Foreign Secretary
電報： 國務卿致國務院
日期： 1954年09月27日
主題： 與英國外交大臣的討論
. . . . these [Kinmen and Mazu] offshore islands have continuously been Chinese territory in distinction to Formosa and Pescadores which have inchoate juridical status under Japanese peace treaty.
. . . . 這些 [金門和馬祖] 近海島嶼一直是中國領土，有別於根據日本和平條約具有尚未完全發展法律地位的台灣和澎湖列島。
[ source: United States Department of State / Foreign relations of the United States, 1952-1954. China and Japan Volume XIV, Part 1 (1952-1954), page 663 ]
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[中文版本] https://www.twdefense.info/trust3/frusch-1954aq.htm