dołek koniunkturalny 用英语:

a horse trough

He came like a pig to the trough.

The tourism industry has its peaks and troughs.

You get trough to a voicemail system

The old stone cattle trough still sits by the main entrance.

The aqueduct has many notable features, including its great length (1007 feet; about 300m), its structural ingenuity (in its use of tapered support columns), and the construction of the metal trough in which the water is carried.

He sits upright, not crouched over his plate like an animal at a feeding trough.