马日事变的英文是什么？

May 21st Incident

MaRi Accident

the May 21st Incident

As long as the contradiction between China and Japan remains acute, even if the entire big landlord class and big bourgeoisie turn traitor and surrender, they can never bring about another 1927 situation, with a repetition of the April 12th[2] and the May 21st Incidents of that year.
只要中日矛盾继续尖锐地存在，即使大地主大资产阶级全部地叛变投降，也决不能造成一九二七年的形势，重演四一二事变⑵和马日事变。