起到

起到	qǐ dào	(in an expression of the form 起到 + … + 作用) to have (a (motivating etc) effect); to play (a (stabilizing etc) role)
起	qǐ	to rise / to raise / to get up / to set out / to start / to appear / to launch / to initiate (action) / to draft / to establish / to get (from a depot or counter) / verb suffix, to start / starting from (a time, place, price etc) / classifier for occurrences or unpredictable events: case, instance / classifier for groups: batch, group
到	dào	to reach; to arrive / to leave for; to go to / to (a place); until (a time); up to (a point) / (verb complement indicating arriving at a place or reaching a point) / considerate; thoughtful; thorough