v.推测，猜测,
Merriam-Webster Online Dictionary
speculate (verb)intransitive verb
1.
a) to meditate on or ponder a subject - reflect
b) to review something idly or casually and often inconclusively
2.
transitive verb
to assume a business risk in hope of gain , especially to buy or sell in expectation of profiting from market fluctuations
1.
to take to be true on the basis of insufficient evidence - theorize
2.
to be curious or doubtful about - wonder speculates whether it will rain all vacation think
Merriam-Webster Online Thesaurus
speculate (verb)to form an opinion from little or no evidence
SYNONYMS:
assume, conjecture, daresay, imagine, presume, speculate, suppose, surmise, suspect, suspicionRELATED WORDS:
conclude, deduce, gather, infer; hypothecate, hypothesize, theorize; believe, conceive, expect, judge, reckon [], take, thinkNEAR ANTONYMS:
demonstrate, document, establish, prove, substantiate, validate; ascertain, determine, find out, learn