[N-UNCOUNT 不可数名词]猜测;推测Guesswork is the process of trying to guess or estimate something without knowing all the facts or information.
The question of who planted the bomb remains a matter of guesswork.
到底是谁安放了炸弹依然只是猜测。
Oxford
guess·work/ˈɡeswɜːk; NAmEˈɡeswɜːrk/noun[uncountable ]the process of trying to find an answer by guessing when you do not have enough information to be sure 猜想;猜测◆It was pure guesswork on our part.这纯属我们的猜测。☞see also