用法:
1 concerned with or formed by speculation(1) 思考的; 思索的; 有关推断的; 推测出的:
speculative philosophy 思辩哲学 *
His conclusions are purely speculative, ie based on reasoning, not facts. 他做出的结论纯粹是推测而来的.

用法:
2 as a speculation(2) 投机的; 投机生意的:
speculative buying of grain 投机购买谷物 *
speculative housing 投机性营造房屋.

• fall short of(go short of)
• fall short of(run short of)
• fall short(run short)
• fall to pieces(go to pieces)
• fancy(fantasy)
• far from(from far)
• far(a long way)
• farther(further)
• fate(fateful)
• favour(prefer)
• feed on(live on)
• feel about(think of)
• feel bad(feel badly)
• feel cold(feel the cold)
• feel equal to(feel up to)
• feel pity for(take pity on)
• feel(feel for)
• feet(foot)
• festal(festive)
• few(a few)
• few(little)
• fewer(less)
• fill the bill(fill the gap)
• fill(fill up)
• find pleasure in(get pleasure from)