He drummed up a new way of changing bicycle tires.

他想出一种调换自行车轮胎的新方法。

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The whole family arrived unexpectedly but mother drummed up a meal for them somehow.

全家不期而至，但不管怎样，母亲还是为他们拼凑了一顿饭。

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He also drummed up some white papers both for, and against ETFs and how they play a role in market volatility.

FORBES: A Retort to Andrew Ross Sorkin on ETFs

Representative CONRAD BURNS (Republican, Montana): Baseless allegations drummed up in a negative campaign that started almost a year and a half ago.

NPR: A Year of Ethics Lapses in Congress

When the machine-building department at Bielefeld's University of Applied Sciences looked in danger of closing, industry drummed up interest among students to keep it open.

ECONOMIST: Germany��s economic model