五四 ng⁵ sei³ {wǔ sì}

fourth of May, cf 五四運動, national renewal movement that started with 4th May 1919 protest against the Treaty of Versailles

五四運動〔--运动〕 ng⁵ sei³ wan⁶ dung⁶ {Wǔ sì Yùn dòng}

1. May Fourth Movement
2. Chinese national renewal movement that started with 4th May 1919 protest against the Treaty of Versailles

五四愛國運動〔--爱国运动〕 ng⁵ sei³ oi³ gwok³ wan⁶ dung⁶ {wǔ sì ài guó yùn dòng}

1. May Fourth Movement
2. Chinese national renewal movement that started with 4th May 1919 protest against the Treaty of Versailles