a mass rally的用法和样例：
- The mass rally was a total fiasco.
- Comrade Mao Tse-tung delivered this speech at a mass rally in Yenan to denounce Wang Ching-wei.
- A mass rally to denounce Wang Ching-wei's traitorous pact is scheduled to be held on February 1 in Yenan.
- A mass rally with a turn-out of 10000 people was held to welcome the distinguished guest.
- Lao soldiers march past the parliament building Vientiane December 2, 2005 as part of a mass rally of 25,000 people to celebrate National Day.
a mass rally的相关资料：