雷聲大雨點小英語怎麽說

The thunder roars loudly, but little rain falls. 或者說：All we hear is thunder, but no rain falls.

雖然這樣直譯比較容易理解，但是老外的說法是這樣的：

Actions speak louder than words. (行動勝於言談)

或All we hear is words, but there is no action. （只動嘴不動手）

或Actions and words should go hand in hand. (言行必須壹致)

另外，還有英語裏還有這樣的說法：

An empty barrel makes biggest sound.（空洞的話說得太多了。）