1.  maintain
2.  hold
3.  keep

• 1. 保持: keep up | hold | retain | maintain
• 2. 水土保持: water and land conservation | to conserve water and soil | water and soil conservation | soil and water conservation
• 3. 保持战略定力: to maintain strategic focus | to maintain strategic willpower; to maintain strategic focus | Maintaining a Strategic Focus

更多释义

• 1.警方吁请公众保持镇静。
  The police made an appeal to the public to remain calm.
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• 2.家人帮助我保持冷静。
  My family helps to keep me centred.
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• 3.咱们保持联系。
  Let's keep in touch.
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