HA1基因进化树显示出以很长的主干和很短的侧枝为特征.The results showed that the evolution of HA 1 represented a long trunk with short side branches.分析构建了两个氨基酸序列的系统进化树.Two phylogenetic trees were created from the alignments of the two amino acid ...
从村子到格雷斯通斯走的一直都是上坡路。The walk from the village to Greystones was uphill all the way.他已经跑了一段很长的上坡路。He had been running uphill a long way.开始一段上坡路并不陡峭.The first part of the ascent is not steep....