例句與造句

1. This short bond length parallels that of oxoanions containing third-row elements like PO 4 3-and SO 4 2-, for which p?-d? bonding was previously proposed as the explanation for the short bond length and thus, argues against the importance of this explanation for these heavier anions . ( " See the article on " hypervalence " for a discussion of bonding models ")
2. It's difficult to find hypervalence in a sentence. 用hypervalence造句挺難的