It's difficult to collect bamboo tiles in mahjong.

This problem is very difficult.

I like to play mahjong with my friends on weekends.

He used a string as a rope to tie up the luggage.

We need to gather the resources necessary to make the project successful.

The child was playing in the park.

We were able to gather everyone.

He said he likes to play strip mahjong.

He contacted the police to search for the lost wallet.

The axon of a nerve cell is like a road for transmitting information.