大钱
high denomination of banknotes or coins; lots of money; a big sum (e.g. a bribe)
打千
genuflection, a form of salutation in Qing times performed by men, going down on the right knee and reaching down with the right hand
打前站
to set out in advance to make arrangements (board, lodging etc); (military) to dispatch an advance party
民族大迁徙
great migration of peoples