What do you mean by changing your surname?

1, easy base, literally, easy: easy (as opposed to "difficult"); Peace; Despise; Change or replace; Exchange; Last name. The word "base" probably has the following meanings: to build or construct with bricks, stones, clods, etc. The walls or fortifications of a military camp; Baseball and softball defensive strongholds. So according to the collocation, you can: change the fortress frequently, and describe it as half-hearted and unable to persevere.

2, the foundation is tired, taking the meaning of accumulation. Easy foundation means easy accumulation, easy accumulation of knowledge, wealth, experience, luck and so on.