“一盘”造句

寄一盘新磁带过去不合算。
It would be uneconomical to send a brand new tape.

我听到了其中一盘录音带的回放。
I heard a playback of one of the tapes.

我发现一盘被弄坏的盒式磁带丢在废纸篓里。
I dis-covered a mutilated cassette stuffed in a waste-basket.