i lace meaning in English

在合适的位置

In my years as a programmer where i developed applications on linux boxes with no handy gui to tell me where my bugs were , i quickly caught on that the more print statements i laced my program with the more chances i had of narrowing down the bugs in my application to a single line
在我作程序员的那些时候，当我在linux上开发应用程序时，没有方便的gui可以告诉我bug在哪，我迅速地发现我在程序中放的print语句越多，我在应用程序中把bug的范围缩小到一行的机会越大。