Central China is one of the economic centers of China.

When the value-added tax rate increases, the burden on consumers also increases.

He earned a victory star in today's match.

A cation is a type of positive ion, which is an atom or molecule that has lost electrons.

In this game, no one wins except for him: he is the best.

In Marxism, surplus value refers to the part of the value produced by workers, excluding the part necessary to maintain their own livelihood.

He was caught in the maelstrom of politics.

I'm going to work, see you later.

I ran into an old friend by chance at the library.

I carry my lunch box every day.