proper channeling的用法和样例：
例句
- Don't come to me with your complains; you've to go through the proper channels, which means a letter to Head Office and a copy to the director and to myself, then you might be listened to.
不要直接向我提意见; 你得通过适当的渠道，即写信给总店，一个副本给经理，一个副本给我; 这样你的意见就可能得到受理。 - Your complaint must be made through the proper channels.
你的意见必须通过正当途径投诉。
