We should the customers’ need.
                    举一反三
- We should make a list of everything ________ we need.
 - 中国大学MOOC: 2. It is one of the challenges operators of last-mile delivery need to face, keeping customers fully informed of the position of their orders whenever they need.
 - My (person) ______ experience suggests that we should contact the customers first.
 - We need not jump the ______; rather, we should look at things a bit deeper.
 - As the products are in urgent need, we should not make any delay in ______.
 
