Some species of tree have been 'read out of the party' by economics-minded foresters because they grow too slowly, or have too low a sale value to pay as timber crops.
有些种类的树木已经被有经济头脑的林农淘汰出局，因为它们生长得太慢，或者作为木材作物的售价太低。
2
IF RATIONALITY reigned supreme in economics, travellers would spend their foreign cash based upon its value in the currency of their home country.
如果经济学是完全理性的，境外旅行者就应当依据外币所能兑换的本国货币价值来消费。
3
"Unfortunately, absolute value theories don't work very well in economics," he wrote recently.