To consider a subject from all sides; meditate upon a topic and form opinions upon it. 思索；推论。 He often speculated about the purpose of life. 他常常思索生命的目的。 To review something idly or casually and often inconclusively. 猜测。 To purchase stock, land, goods, etc. at a risk, with the idea of selling them at a higher market value. 投机。 speculate in land 作土地投机买卖。 He speculated in stocks and lost a lot of money. 他做股票投机生意，赔了一大笔钱。 n. speculator. n. speculation. |