（9） One of these days（最近）：

　　If Harry goes on littering, he will get into trouble one of these days.

　　（10） In two minds about（对三心两意）：

　　Irene is still in two minds about going to her former boy friends wedding party.

　　（11） It cuts both ways（有利也有弊）：

　　Jim asked Mary not to go to the party. But it cuts both ways. Mary now expects Jim to stay at home with her.

　　（12） Put two and two together（根据事实推断）：

　　Since Susan is neither at home nor at work, Bob puts two and two together and guesses that she should be in the shopping centre.

　　（13） On all fours（爬着）：

　　Infants are on all fours prior to learning to walk.

　　（14） At sixes and sevens（乱七八糟）：

　　Tony moved to a new office where everything is still at sixes and sevens.

　　（15） A nine days wonder（轰动一时但很快被遗忘的事）：

　　Helen became a popular singer, but suddenly she disappeared. Her singing career was only a nine days wonder.

　　（16） Nine times out of ten（多数情况下）：

　　Judith thought that students liked her very much, but nine times out of ten she was wrong.

　　（17）Ten to one（很可能）：

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