contribute to doing？contribute to doing sth
step to doing还是step to do
Steep，表示"台阶，步骤"。Steptodoing表示"做...的步骤"。本质上，后面的todoing是做step的定语，并且to是介词不是动词的不定式，所以应该用todoing。
Thereareonlyafewstepstodoingtheexperiment.
SothefirststeptodoingthatisIwanttojustgeneralizeourresults.
类似的的还有，thekeytothedoor，theanswertothequestion。
当然有时候，我们也会看到这样的短语，thefirststeptodo，表示"第一步将要去做的事"。todo表示将来。
相关短语,如下:
Takestepstodo采取措施做...
=Takeactions/measurestodo
get sth doing造句
1.Istayproductivebyalwaysgettingsomethingdone,whetherit'sworkorchores.2.Shemanageshertimeeffectivelybyalwaysgettingsomethingusefuldoing.3.Heavoidsfeelingboredbyconstantlygettingsomethingfundoing.4.Theteammembersalwaysfindawaytocontributebygettingsomethingvaluabledoing.5.Imakebetteruseofmyfreetimebygettingsomethingproductivedoing.
