白猫吃东西怎么说英语

To say "a cat eating something" in English, you can say "a cat is eating something" or "a cat eats something." For example:
The cat is eating a bowl of wet food.
My white cat eats dry kibble every day.
You can also use the present continuous tense to describe an action that is happening at the moment, such as "The cat is eating a mouse right now."
If you want to specify the type of food the cat is eating, you can use an adjective to describe it, such as "The cat is eating a bowl of wet cat food" or "The cat eats a plate of cooked fish every day."