例句與造句

1. It is imperative that all articles be linked through the " See also " sections to other similar, as well as subset and superset articles.
2. Other authors prefer to use the symbols ?" and ?" to indicate " proper " subset and superset, respectively, instead of ?" and ?".
3. It's difficult to find subset and superset in a sentence. 用subset and superset造句挺難的