You can absolutely use the file from the Adobe Stock website in your work as long as you're not really using it for commercial/resale use.
Additionally, please see Stock Licensing & terms FAQ: Where can I find the terms and licensing information for Adobe Stock? for more details.
Let me know if you have any additional queries.
OK. But I just want to be sure, I didn't buy this tiny size pictures. I enter the main page of adobe stock, search for "angry portrait" and find some pictures, then right click on it and choice "save as the image".
is it still ok? I am not using them for commercial/resale use.
If you want to just use the preview version of the image, please go to the Adobe Stock website and search for the desired image and click on the 'Save preview to Computer'.
Feel free to update this thread in case of any additional questions.