在各种规定的培养基上可得到锈菌的单体纯净培养物.The axenic culture of rusts has been achieved on various defined media.这为霉菌的生长提供良好的培养基.It provides a good medium for growth of molds.马铃薯对许多细菌是一种良好的培养基.The potato is a good nutrient medium for many...
In many countries you have to haggle before you buy anything.在许多国家里买东西之前都得讨价还价。She laughed again, enjoying the haggle.她又大笑起来，享受着砍价的乐趣。Ella taught her how to haggle with used furniture dealers...埃拉教她如何和旧家具经销商砍价。Of course ...
After a few minutes the result ; a solid piece of fibreboard, flexible, waterproof.几分钟后一张结实的 纤维板 制成了.不但防水, 还具有弹性.Take waterproof clothing — Orkney weather is unpredictable.带上防水的衣服吧——奥克尼的天气可是变幻莫测的。My windbreaker was water...