apropos

apropos
[ˌaprəˈpəʊ, ˈaprəpəʊ]
preposition
  1. with reference to; concerning
    关于;与…有关的
    she remarked apropos of the initiative, ‘It's not going to stop the abuse’.
    她就这一倡议发表意见时说“这无法阻止虐待现象”。
adverb
  1. [sentence adverb apropos of nothing]used to state a speaker's belief that someone's comments or acts are unrelated to any previous discussion or situation
    无缘无故地;(与当前谈论或情况)没有任何联系地
    Isabel kept smiling apropos of nothing.
    伊莎贝尔无缘无故地微笑着。
adjective
  1. [predic.]very appropriate to a particular situation
    与某一情景相配的,适合的
    the song feels apropos to a midnight jaunt.
    这首曲子和午夜小游很相配。
语源
  1. mid 17th cent.: from French à propos ('with regard) to (this) purpose'
英语宝典
考试词汇表