Sedimentation and denudation play a role in exceptional cases.沉积和剥蚀作用的影响只在特殊情况下起作用.Hitchhiking effects also play a role in experiments with marker genes.附加效应在以标记基因作试验中也是起作用的.Co - ordinated action on taxation will have to...

play a role in的音标：play a role in的英式发音音标为：[pleɪ ei rəul in]play a role in的美式发音音标为：[pleɪ e rol ɪn]...

在…起作用...