user line的用法和樣例：
例句
- The network interface uses a Multirate Digital Subscriber Line.
網(wǎng)絡(luò )接口使用多速率數字用戶(hù)線(xiàn)路。 - A test made to find out whether or not certain facilities which may be desired,such as a subscriber's line or trunk,are available for use.
一種查明希望的某些設施是否可供使用的測試，某些設施可以是用戶(hù)線(xiàn)路或干線(xiàn)等。
