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- 他是金融领域的投机者。
He is an adventurer in financial field.
- 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.
- 他在做些无利可图的投机生意。
He makes some unprofitable speculations.
- 投机活动金融投机或商业冒险
A financial speculation or business venture.
- 他们投机购买谷物是不合法的。
Their speculative buying of grain is illegal.
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