海闊天空
[詞典] as boundless as the sea and sky [heavens]; as broad as the sea and sky; in open sea and sky; endlessly vast; [電影] Radio Flyer;
[例句]這樣在節目上他就能和這位作家海闊天空地進行討論了。He'll read some reviews so he can wing it when he talks to the writer on his show.