direct distance dialing, DDD
direct distance dialing, DDD
[电子学英汉词典]
direct distance dialing, DDD长途直拨
是什么意思，direct distance dialing, DDD的解释，direct distance dialing, DDD的翻译
direct distance dialing, DDD
[电子学英汉词典]
direct distance dialing, DDD是什么意思，direct distance dialing, DDD的解释，direct distance dialing, DDD的翻译