thresh

v. 打(庄稼)
vt. 打谷

They are separating the grains from wheat with a threshing machine.

他们正在用打谷机给小麦脱粒。

If we put our heads together we can probably thresh out a workable scheme.

如果我们集思广益，也许能琢磨出一个切实可行的方案。