The Berlin government is banking on the Olympics to save the city money. [VERB PREP. noun]

柏林市政府指望着奥运会能给这座城市省钱。

'He's not still there, I suppose?' — 'I wouldn't bank on that,' she said. [VERB PREP. noun]

“我想他不在那儿了吧？”—“我觉得希望不大，”她说。