=1

六四

Liù Sì

refers to Tiananmen incident of 4th June 1989

=1

六四

Liù-Sì

the Tiananmen Square protests of 1989

=2

天安门

Tiānānmén

Tiananmen Gate, entrance of the Imperial City in Beijing

=2

天安门

Tiān'ānmén

(Mainland China, humorous, slang) fly (strip of material at the front of a pair of trousers, pants, etc.) Tian'anmen, Tiananmen, Gate of Heavenly Peace (a gate in Beijing, China) fly (strip of material at the front of a pair of trousers, pants, etc.) short for 天安門廣場／天安门广场 (Tiān'ānmén Guǎngchǎng, “Tiananmen Square”)

3

事件

shìjiàn

incident; event