周行 meaning in Chinese

chikayuki
kaneyuke
xing zhou

Surgical resection was performed at week 6 in both groups
两组患者均在第6周行肿物切除手术。
I don ' t suppose we could put it back a week or so would we
我假设我们不能推迟一周大约，我们能吗?还是我们假设推迟一周行吗？
As they go round generation by generation , day by day , the world go round
当它们世世代代、日复一日地周行不已，世界遂正行于其履。
Lao tzu described the tao , or way , as " unimpeded harmony , " and the source of all things
老子描述道为有物混成周行而不殆及万物之母。