call waiting [通信] 呼叫等待
例句
1、Use a land line, and disable call waiting.
使用固定电话，禁用呼叫等待。
2、Do you really need call waiting, 3-way calling and all the other extras the phone company charges you for?
你是否真的需要呼叫等待，3方电话和支付其它额外的电话公司费用呢？
various waiting各种等待
例句
Erecting or placing advertisements for tobacco at public places such as various waiting rooms, cinemas and theatres, conference halls and sports stadiums and gymnasiums is prohibited.
禁止在各类等候室、影剧院、会议厅堂、体育比赛场馆等公共场所设置烟草广告。
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