adj.现存的，仍然存在的
Two fourteenth-century manuscripts of this text are still extant.
这个文本仍有两份14世纪手抄本存世。
Some of Washington's letter are extant.
华盛顿的有些信件仍然被保留着.
extant remains of the ancient wall
尚存的古城墙遗迹
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