coming and going continuously 络绎不绝

“络绎不绝”，汉语成语，形容行人、车、马、船等来来往往，接连不断。可以翻译为“in an endless (a continuous) stream”或“coming and going continuously”。

例句：

参观展览会的人络绎不绝。

Visitors to the exhibition came in an endless stream.

路上的车辆络绎不绝。

The flow of traffic is endless.