英文释义

　　To be looking for extra sales that are not easy to find, usually because there have been very few sales recently

　　例句

　　Business has been very slow recently so we are shaking the trees by revisiting old customers who we haven't see for a long time and trying to sell our products to them.

　　公司近期发展缓慢，因此我们再度拜访久未见面的老客户，向他们推销产品，以挖掘销售潜力。