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.
Because Manhattan Island is made of solid rock, it is safe to build very tall buildings.
曼合顿岛是由坚固的岩石构成的,这使得兴建大厦非常安全。
They had to work inside the ship, cutting away old metal, fixing new metal plates, drilling holes, laying electrical and phone wires and fixing new pipes for water and steam.
他们要在船舱里工作,切掉旧的金属,焊接新的金属板,钻孔,埋电线和电话线以及安装新的水管和蒸汽管。
It soon became clear that the straight part of the dance changed when the sun's position changed. If the feeding place was toward the sun, the dancer headed straight upward during the straight part of the wagging dance.