This is the 5524th most frequent Chinese word.
兩隻
"兩隻" means "two (of something, usually animals or objects)."
Although '隻' is primarily used for animals, it can also act as a counter for objects of specific categories; here, it counts cups.
桌子上有兩隻杯子。
There are two cups on the table.
The phrase '兩隻' is used to indicate two units of countable objects, usually animals, here referring to two kittens.
我有兩隻小貓。
I have two kittens.
In this sentence, '兩隻' specifies the number of dogs, again showing its use as a counter for animals.