a two-month-old leopard cub的用法和样例：
- This colt is only two months old.
- Polar bear cub Flocke (Flokker) turned two months old on Monday, and Nuremberg Zoo released video footage of the bear cub, showing him being pampered by the zoo keepers.
- Carsten is already two months old.
- Babies of two months old do not appear to is reluctant to enter the water.
- Babies of two months old do not appear to be reluctant to enter the water.