Take care not to remove too much fat; just the tough or thick parts. or crockpot. Adjust the temperature setting on the appliance to low. Most slow cookers and crock pots come with a guide to let you know how long it will take to cook meat at various temperatures. Use the guide to figure out what setting to use. Pour a cup of water over the seasonings. It should take six to eight hours, depending on the setting you choose on  your appliance.

TL;DR in Chinese:
切掉多余的肥肉。 把牛臀肉放入慢炖锅。 在牛肉上浇上各种调料，然后再倒入1杯水。 盖上盖子炖。