GbEng
他在做些无利可图的投机生意。 He makes some unprofitable speculations.
他们投机购买谷物是不合法的。 Their speculative buying of grain is illegal.
在南美的一些风险投机中他损失了所有钱财。 He loses all his money in some risky venture in South America.
他是金融领域的投机者。 He is an adventurer in financial field.
公司发布了新闻稿以期遏止对其股票的投机活动. The company issued a press release to try to stop speculationin its shares.