manual threshing造句

例句与造句

1. To thresh the grain they used a manual threshing machine.
2. The production catered to the needs of agriculture that was just becoming aware of mechanization : manual threshing machines, straw cutters, grain fans, wine presses, corn shellers, etc.
3. It's difficult to find manual threshing in a sentence. 用manual threshing造句挺难的