The machine failed on its trial run.但这部机器的试车失败了.Take the car for a trial run to see if you like it.试试那辆汽车,看看你是否满意.It was sort of like a trial run for the school camp.倒有几分像学校的野营的试行....
He was also alleged to have conducted black magic ceremonies.据称他还做了法。They conducted a public slanging match.他们在公开场合对骂了一通。A clergyman friend of the family conducted the funeral.这家人的一位牧师朋友主持了这场葬礼....
植物由于具有螯合机制可能影响土壤的化学特性.Plants may possibly influence soil chemistry by the possession of chelating mechanisms.确定螯合 -- 溶剂萃取法所得到的检测限颇为困难.It is difficult to define the detection limits obtained by chelation - solvent extract...