例句與造句

1. If digital content is protected using some drm solution , a clearing house service may be required
   如果數(shù)字化的內(nèi)容是使用一些drm方案保護(hù)的，可能還需要票據(jù)交換服務(wù)。
2. It's difficult to find clearing house service in a sentence. 用clearing house service造句挺難的