打谷時(shí),很難得到干凈的谷粒.It was difficult to obtain clean grains when the crop was threshed.他們正在用打谷機(jī)給小麥脫粒.They are separating the grains from wheat with a threshing machine.她發(fā)現(xiàn)孫子正在打谷場上操練,便下了驢,當(dāng)著戰(zhàn)士們的面,上去一把揪住地老鼠的衣頓,罵了兩句,用鞭桿朝他腦門敲了一 記 ...