Our company has arranged me to go on a business trip to Shenzhen next week,but I will drop in on my friend in Guangzhou first.In other words,I will go to Shenzhen ________ Guangzhou.
(2013·亳州模拟)difficult and challenging the task may be, we must finish it on time, because there is a possibilitywe’ll be fired if we can’t fulfill the task on time.