These birds navigate by the sun.这些鸟靠太阳确定方向。He was not able to walk without a cane and could only navigate steps backwards...没有手杖他无法走路,只能小心翼翼地向后退。When travelling on fast roads at night it is impossible to drive and naviga...
She is coming ! Strike up , Beth!她来了, 蓓丝,奏乐!Perhaps I could strike up a conversation with this friendly looking man.也许我可以和这个看上去很能够友好的男生说上几句话.OK, we'll strike up as he walks in the door.好的,当他进门的时候, 我们就会奏乐....
在这些化合物里, 环戊二烯环只有4个氢.In there compounds, the cyclopentadiene ring has only four hydrogens.其他类异戊二稀则分泌到细胞外间隙中.Other isoprenoids are excreted into the extracellular space.通过合成双环戊二烯型不饱和聚酯树脂, 制备出一种新形石材专用胶粘剂.By synthesizing DCP...