Hi Tafeng,
If you are sure you need more time to evaluate the license, NXP can for sure extend their eval period. First time evaluators can download CW from our NXP web site. If you already did it, you must have an entitlement which they can check and ask to be extended through a case.
Evaluation Software|NXP
How to get the entitlement ID ? Ask customer to check their Order History within the Software Licensing portal , and look for the EVALUATION Catalog they need to extend.

here is how to create a case:
How to submit a new question for NXP Support
Have a great day,
Jennie Zhang
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