好运就是当机会来临时，你早已做好了准备。Good luck is when an opportunity comes along and you're prepared for it. 斯图尔特现在变得只要和别人意见不合，就准备大吵一架。Stewart has developed a tendency to mix it verbally with the opposition.许多学生并未做好接受高等教育的充分准备。Many...
Leonard made a rapid calculation: he'd never make it in time.伦纳德快速盘算了一下：他肯定赶不上了。Graham made a quick mental calculation.格雷厄姆很快就心算出来了。He is absorbed in the calculation of that difficult maths problem.他全神贯注地在算那道数学难题....
商业上采用的以镍作催化剂的氢化有两种.Commercially two main types of hydrogenations are carried out with Nickel catalyst.抑制剂和促进剂能影响氢化速率.Inhibitors and promoters may affect the rate of oxxidution.用六氢化邻苯二酸酐加入到邻苯二酸酐中,可使其放热反应减慢.Exothermic reac...
Beauty is an attitude. It has nothing to do with age.美是一种态度，与年龄无关。A lot of this has to do with power and greed.凡此种种都和权力与贪欲有关。We could all do with a cup of tea.要是能给我们都来杯茶就好了。...