空喊

kōng hǎn yī zhèn yǒu shén me yòng

空喊一阵有什么用？

What's the use of all this empty talk?

suǒ yǒu zhè xiē yǎn shuō zhǐ bu guò shì kōng hǎn yī tōng

所有这些演说只不过是空喊一通。

All these speeches are just a load of hot air.

guāng shì kōng hǎn bù xíng yīng gāi cǎi qǔ xíng dòng le

光是空喊不行，应该采取行动了。

Loud empty talk can lead us nowhere, and it's high time we took actions.