“7.7事变”用英语怎么说？

七七事变也称“卢沟桥事变”（Lugou Bridge Incident/Lukouchiao Bridge Incident/Marco Polo Bridge Incident/Roko Bridge Incident)

http://baike.baidu.com/view/35377.htm

Lugou Bridge Incident/Lukouchiao Bridge Incident/Marco Polo Bridge Incident/Roko Bridge Incident

the lugou bridge incident 或者the July 7th incident.