自己的需求该怎么说英语

To express your own needs in English, you can use phrases such as:
"I need/want/require..."
"I would like/appreciate/prefer..."
"Could you please provide/give/offer..."
For example:
"I need some help with this task."
"I would like a glass of water, please."
"Could you please provide some more information on this topic?"
It's also important to be specific and clear when expressing your needs, so that the person you are communicating with can understand and respond appropriately.