任意的

• faculative
• freewill
• discretionary
• discretional
• arbitrary
• freeform
• random
• spontaneous
• voluntary
• optional
• aleatoric
• facultative

例句

1. 干扰噪声一种干扰，尤指一处任意的和持续的干扰，使信号变模糊或减少
   A disturbance, especially a random and persistent disturbance, that obscures or reduces the clarity of a signal.