1.otherwise ad. 另外,用别的方法;在其他方面;要不然,否则
例句：Under the circumstances I can’t do otherwise.
在目前情况下我不能不这样做。
2.observable a. 可观察的;看得见的
3.blockage n. 封锁,妨碍
例句：we had to call a plumber to clear out the blockage in the drainpipe.
我们得叫一个管道修理工来清除排水管中的堵塞物。
4.conclude vt. 推断,断定;缔结,议定;结束,终结;决定
例句：I concluded his ideas from his behaviour.
从他的举止我可以断定他的思想。
1.American researchers said they believe their findings could apply to people as well.
apply to将...应用于，适用于
例句：You must apply yourself to your studies.
你应该专心学习。
2.In comparison, only thirteen percent of the monkeys on restricted diets had died.
in comparison比较起来,比较地
例句：That old airplane was slow in comparison with today's jets.
和今日之喷射机比较起来那架旧飞机较慢。
3.On average, rhesus monkeys live about twenty-seven years in captivity, that is, when they live with humans and not in the wild.
on average平均，按平均数计算
例句：Representative cost on average 25,000 per head per annum.
每年每人平均花费25000英镑。