英语翻译请帮我翻译《天使在人间》书中,奥黛丽赫本对儿子肖恩赫本说过的一句话“做那些最需要你做的事情,清楚的知道你到底要的

The design is based on USB CNC Experiment System Interface design.Interface used in51 MCU,MCU programming,the single chip microcomputer can receive from the computer USB interface control instruction.The program is converted into the corresponding numerical control experimental system control command is sent to the numerical control experimental system,complete the corresponding control operation.
Based on the USB CNC experiment system interface design hardware and software aspects of synchronous design.The hardware part is mainly composed of CH372chip,STC89C51RC chip,DS3487M chip,and the chip download circuit etc..Software mainly includes the use of Visual Basic design of CNC milling machine simple test procedures,Visual C++ head document design,single-chip end procedure design.Single end the use of assembly language for software design.In order to facilitate the expansion and the change,the software design uses the modular structure,make the logic relation of designing program more concise.All the hardware circuit and the program design is complete,have been tested in the laboratory through,is expected to complete a request.

Do what you need to do things, know what you want is what. If you ask too much, not only did not, and will complicate your life tired

Do what you need to do,be clear about what you really need.If you ask for too much,you will get nothing,besides,you will make your life exhausted and complicated.

Do those things which need you most and know what the exactly do you need. If you want too much ,you can't get what you want /(you will get nothing ).What's worse ,it will make your life complicated and exhausted.

Do what you need ，and know what you want。 You'll get nothing but a hard life，if you ask for
too much。

"Do those who most need you do, know what you want to do. If you want to too much, not only what are not, and will put your life make complex tired"

Do what you need most to do，and be sure of what you really want.If you want too much, you will get nothing but a tiring complex life.