Artificial intelligent assistant

Freefone

Freefone
n [U] (Brit) system in which the person making a telephone call does not pay for the cost of the call 免费通话(打电话者不必付费的通话方式)
    Ring the operator and ask for Freefone 8921. 接通接线生, 然後要免费通话8921号.

牛津英汉双解词典

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