例句與造句

1. He manipulated the frequency dial of the radio .
   他開始調撥頻率鍵盤。
2. Csm composite signal multi - frequency dialling
   復合信號多頻撥號
3. Voice frequency dialing
   語頻撥號
4. It's difficult to find frequency dial in a sentence. 用frequency dial造句挺難的