We tried to grow some copper sulphate crystals with our children.我们想跟孩子们一起制作硫酸铜晶体。Adding sulphate to the solution will give a precipitate.将硫酸盐加入该溶液会产生沉淀.More ammonium sulphate solution is being recovered in the process o...
I only pull in 15,000 a year as a social worker.作为一名社工，我每年仅挣15,000。She expressed resentment at being interviewed by a social worker.她表达了对被一位社工采访的愤恨。He is a hard worker and a skilled gardener.他工作很努力，对园艺很在行。...
中尉，做这些事情我是新手，你是行家。I'm a novice at these things, Lieutenant. You're the professional.燧发枪团士兵琼斯奔向作战指挥室寻找他的中尉长官。Fusilier Jones ran towards the Ops Room to find his lieutenant.他和卡西迪中尉正在勘查犯罪现场。He and Lieutenant Cassi...