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 ...
I saw them making their way, hand in hand, down the path.我看到他们手拉手沿着小路往前走去。For us, research and teaching go hand in hand.对我们而言，研究和教学是齐头并进的。Higher returns and higher risk usually go hand in hand.更高的收益通常伴随着更高的风险。...
I could provide you with the addresses of at least three illegal drinking dens.我可以为你提供至少3处非法饮酒窝点的地址。Female bears tend to line their dens with leaves or grass.母熊往往会在洞穴里垫些树叶或草。In winter bears usually hibernate in their den...