To cause to pass from point to point.

使流通；使传播；使循环。

To move around and return to the starting point.

环行；循环。

To pass from place to place.

传播。

To be distributed and sent, as a newspaper to its readers.

(报纸的)配送。

To become diffused or distributed, as air through a building.

(空气在建筑物内等)流通。