胡乱

carelessly; recklessly; randomly; haphazardly; arbitrarily; thoughtlessly; indiscriminately

猜测

guess; speculate; conjecture; surmise; judge; imagine; gather; divine; hypothesize; presume; infer; second-guess; speculation; supposition; thumbsuck; guesswork; hypothesis; presumption; assumption; conjectural; notional; speculative