旗号

dǎ qí hào ràng huǒ chē tíng xià lai

打旗号让火车停下来

flag down a train

dǎ zhe ài guó zhǔ yì de qí hào

打着爱国主义的旗号

unfurl the banner of patriotism

dǎ chū qí hào chuán dá mìng lìng

打出旗号传达命令

flag an order

zhèng fǔ shì zài duì pín qióng kāi zhàn de qí hào xia shàng tái de

政府是在对贫穷开战的旗号下上台的。

The government came to power under the banner of fighting poverty.