This sluicegate is used to regulate the water level of the river.

His specialty is computer science.

I went to see the Arc de Triomphe in Paris.

He is deeply studying about the classification of superphylum in his biological research.

The Golden Gate Bridge is one of the iconic structures in America.

I saw the sunset at Kinmen Bay.

The doctor examined my perineum.

He is always cheerful and believes in the proverb 'Fortune comes in by a merry gate.'

Sumatra, an Indonesian large island, has a lot of nature and culture.

Since he is always laughing, it can be said that 'fortune comes in by a merry gate'.