Mary Ann asked him how dinner had been. "The pits," he replied.玛丽·安问他晚餐怎么样，他回答说：“糟透了。”The wood is full of pits and needs sanding.这木料上到处是凹坑,需用砂纸打磨一下.The comedian's performance was the pits!这喜剧演员的表演糟透了....
The transmission of normal circular - arc gear is a typical Bertrand conjugation.考虑到平行轴的法向圆弧齿轮传动已臻成熟,论文重点研究了相交轴与交错轴条件下法向圆弧齿轮传动的基本方案.a verb with an irregular conjugation不规则动词Aromatic cytokinins metabolism is classified un...