to deal with a person or task that needs to be dealt with or is waiting to be dealt with

"These letters need posting." "I'll see to them later." “这些信需要寄出去。”“我过一会儿来处理。”

Mrs Chapman asked for some help with the orders - could you see to it? 查普曼夫人在订货方面需要帮助——你能办一下吗？

[ + that ] Please see to it that no one comes in without identification. 请注意不要让没有身份证明的人进入。