ad infinitum

副词 ad infinitum:

1. to infinity; without or seemingly without limit

1. I don't want to go on working here ad infinitum.
   我不愿意永远在这里干下去。
2. A flea has smaller fleas to prey on them, and these have smaller still to bite them, and so proceed ad infinitum.
   一只跳蚤有更小的跳蚤咬它，而后者有更小的咬它们，如此以至无穷。