每到

měi dào zhōu wǔ tā zǒng shì zǎo jiù liū le

每到周五，她总是早就溜了。

She always skives off early on Fridays.

měi dào yī gè gǎng kǒu tā dōu shàng àn

每到一个港口他都上岸。

He went ashore at every port.