| 例句 |
The company produced circuitry for communications systems.该公司为通信系统生产电路。Vodafone was a successful bidder for a licence to develop cellular telephone systems in Greece.沃达丰公司成功中标，取得了在希腊经营移动通信系统业务的许可证。Their communication systems are inefficient in the extreme.他们的通信系统效率极低。 |