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英語「tortoise」の意味・使い方・読み方 | Weblio英和辞書
使用する際の注意点 Differences exist in usage of the common terms turtle, tortoise, and terrapin, depending on the variety of English being used. In American usage, turtle is often a general term; tortoise is used only in reference to terrestrial turtles or, more narrowly, only those members of Testudinidae, the family of modern land tortoises; and terrapin may refer to turtles that ...
