naiveten.
英 na:'i:vtei | 美
中文n. 天真；质朴；纯真无邪；天真烂漫
词根词源
naivete (n.)1670s, from French naïveté, from Old French naiveté "genuineness, authenticity," literally "native disposition" (see naive). Englished form naivety is attested from 1708.
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