常見例句

用作形容詞 (adj.)

• Quinine is an effectual preventive for malaria.
  奎寧是有效的瘧疾預防藥。
• The government hasn't worked out the effectual measures to combat unemployment.
  政府還沒有找出對付失業(yè)的有效措施。
• The practice has shown that the monitoring system is effectual.
  實踐表明,該監(jiān)督控制系統(tǒng)是行之有效的。
• He felt his way to effectual practice through a multitude of trials and misconceptions.
  經過多次嘗試和誤解,他在實踐中摸索前進。
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