He is learning Taiwanese using Zhuyin fuhao.

I have been to Blagoveshchensk.

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.

I am very interested in sociolinguistics.

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

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

The era of the Three Sovereigns and Five Emperors is an important period in Chinese history.