speculated造句

The philosopher speculated about the future of the human race.
那位哲学家考虑过人类的前途.

He speculated that he would succeed.
他推测他将成功.

Would he be what he is if he hadn't speculated on the stock of exchange?
如果不搞证券投机买卖,他会成为今天这个样子 吗 ?

• #speculated