erst

听听怎么读
英 [ɜ:st]
美 [ɜst]
是什么意思
  • adv.

    以前,往昔的;

  • 英英释义

    erst[ 'ə:st ]

    • adv.at a previous time

      "her erstwhile writing"

      同义词:onceformerlyat one timeerstwhile

    学习怎么用

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