例句：Children have been routinely immunized against polio since 1958.
      自从1958 年以来，儿童都按照常规接种防治小儿麻痹症的疫苗。

2.identify vt.认出, 识别

例句：Would you be able to identify the man who robbed you?
      你能够认出那个抢你东西的人吗?

3.categorically adv.明确地;直截了当地

例句：She stated categorically that she had no intention of leaving.
      她明确地说她无意离开。

4.plaintiff n.<律>原告

例句：She is the plaintiff in the suit.
      她是那件诉讼案中的原告。

5.spin vt.vi.使…旋转

例句：She got up and spun a little turn.
      她站起来转了一小圈。
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