国库券

例句：

1. 1. The government has issued a new batch of treasury bills to raise funds.
   政府已经发行了一批新的国库券以筹集资金。
2. 2. The investor bought the government bond for its high yield and low risk.
   投资者购买了这期国债，因为它的收益率高且风险低。
3. 3. The government bond market is an important part of the financial system.
   国债市场是金融体系的重要组成部分。