speculationon Advancedalso onCEFR Mastery level (C2)? Academic Vocabulary List (AVL)? 思考,投机买卖,投机活动 speculate speculate(verb) 思索,投机,推测 speculation speculation(noun) 思考,投机买卖,投机活动 speculative speculative(adjective) 思索性的,投机的,推测的 speculator speculator(noun) 思索者,投机者 speculatively speculatively(adverb) 思索地,思考地,投机地 Forms verbnounadjectiveadverb speculate speculation speculative speculatively speculator