• 1. 可任选的: optional
• 2. 可以任选的: optional
• 3. 可任意选择的: optional | perform an operation on

更多释义

• 1.一种方法是提供两套拼写体系，改进简化后的和原有的，人们拼写时可任选；另一种则是将拼写系统彻底改进。
  The first would be to simplify the way in which words are spelt and then allow people to choose whether to use the new or old system, while the second approach would involve a complete change.
  dict.yoduao.com
• 2.我们可任选一方便的固定量溶液进行研究。
  We are free to choose a convenient fixed quantity of solution to work with.
  dict.yoduao.com
• 3.一般建议选手在开始预备姿势时将手放到所要求的位置，如此一来可告诉靶场主任选手已经准备就绪。
  It is suggested that when the competitor takes up the ready position, placing the hands into the position required will indicate final readiness to the Range Officer.
  dict.yoduao.com

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