pitch（up）on
select by chance；single out选出；挑出
Whenever there's an unpleasant job to be done the chief pitches on me．每当有讨厌的工作要干，头头就选中我。
I pitched upon the very house that suited me．我选中了使我最满意的房子。
Why did he pitch on the poor little boy as the one who broke the cup？他为什么偏偏要说是这个可怜的小男孩打破杯子呢？