The axenic culture of rusts has been achieved on various defined media.在各种规定的培养基上可得到锈菌的单体纯净培养物.Copper nails are better than iron nails because the iron rusts.铜钉比铁钉好，因为铁会生锈。Copper nails are better than iron nails because ...
He was a genius and because of it you could accept lapses of taste.由于他是天才，所以品位上偶有差池大家也不会介意。He sometimes lapses from good behavior.他有时行为失检.He could forgive attacks of nerves, panic, bad unexplainable actions, all sorts of...
One end of the see - saw goes up while the other end goes down.跷跷板一头起来,另一头就下去.Prices see - saw according to demand.物价随需求变化而反覆涨跌.Changing demand causes a see - saw in prices.需求不断变化造成价格反覆涨跌....