| 单词 | billet-doux |
| 释义 | Word Frequency billet-doux(ˌbɪlɪˈduː, French bijɛdu) nounWord forms: plural billets-doux (ˌbɪlɪˈduːz, French bijɛdu) old-fashioned or humorous a love letter Word origin C17: from French, literally: a sweet letter, from billet (see billet1) + doux sweet, from Latin dulcis |
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