I have been to Santo Domingo.

We spread phosphate fertiliser on the field.

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

In this chemical reaction, cyclohexane is the main product.

He was ignoring my opinion.

Ah, I see〰. I got it.

In linear algebra, the upper triangular matrix plays a very important role.

San, true to his name, always seems to be shining.

Saint Pierre and Miquelon is an overseas territory of France.

We adjusted our travel schedule according to Mountain Standard Time.