shrewd
adj
(-er, -est) having or showing good judgement and common sense; astute 有准确判断力和常识的; 精明的; 敏锐的
a shrewd financier, dealer, politician, etc 精明的金融家、 商人、 政治家等
a shrewd argument, plan, measure, investment 高明的论点、 计画、 措施、 投资
make a shrewd guess, ie one that is likely to be right 猜得相当准.
The ground supported fewer plants, and the insects which lived on these plants died out.
地上长的植物少了,生活在这些植物上的昆虫就消亡了。
However, in recent times the old-age pension has only been paid to the poorest people because there has been an increase in the number of people out of work.189