做老婆饼的人
~ (sth) (in sth) to buy property, shares in a company, etc. in the hope of making a profit
例句：
Now is a good time to invest in the property market.
现在是对房地产市场投资的好时机。
~ (in/on sth) to buy goods, property, shares, etc., hoping to make a profit when you sell them, but with the risk of losing money 投机；做投机买卖
例句：
He likes to speculate on the stock market.
他喜欢炒股。
