guesstimate

n (infml 口) estimate made by combining guessing wih reasoning （凭猜测的）估计; 瞎估计; 瞎猜.

guard, guard against, guard's van, guard-rail, guarded, guardhouse, guardian, guardian angel, guardianship, guardroom, guardsman, Guatemala, guava, gubernatorial, gudgeon, guelder rose, guerrilla, guerrilla (also guerilla), guess, guesser, guesswork, guest, guest-house, guest-night, guest-room, guesthouse, guestroom, guffaw, guidance, guide, guide-dog, guide-line, guided, guideline, guild, guild-hall, guilder, guile, guileful, guilefully,