细胞核the nucleus of a cell移植细胞核内的染色体是可能的.It is possible to transplant chromosomes in cell nuclei.细胞中最重要的部分是细胞核.The most important part of the cell is the nucleus....
I have tried to provide some signposts.我曾经尽力提供一些标志物.These events were all signposts pointing toward change.这些事件都是将要进行变革的征兆。They surveyed land and erected signposts and distance indicators.他们还负责勘测土地,竖立路标和距离示意牌.Follow the ...
他的外科手术器械是一把刀和一把钳子。His surgical instruments were a knife and a pair of pincers.给外科手术器械消毒to sterilize surgical instruments所有的外科手术器械在使用之前,必须消毒.All surgical instruments must be sterilised before use....
他坐在扶手椅上打盹，睡着了。He was nodding off to sleep in an armchair.在一间屋子里，年轻的母亲们在织布，而她们的孩子就在她们膝上打盹。In one room, young mothers weave while babies doze in their laps.不要让那条狗打盹。Don't let yon dog nod off....
Clefts are often associated with other more serious congenital defects.裂口常与其他更严重的先天性异常并发.Correction of palate clefts is much more difficult and usually not as satisfactory.硬腭裂的矫正更为困难,且常不理想.The open , needle - like spaces...