It's difficult to understand the context of this sentence.

He is learning Taiwanese using Zhuyin fuhao.

The macaw is a bird with colorful feathers.

He is interested in the study of international auxiliary languages.

I have been to Santo Domingo.

He is an expert in sociolinguistics.

Trinidad and Tobago is a country located in the Caribbean Sea.

He always boasts, but in reality, he does nothing.

He has a habit of always boasting.

This lime sulphur is very effective in preventing pests and diseases in fruit trees.