bonds for water works

例句：

1. 1.The bond issue is a major source of revenue for the city government.
   债券发行是市政府的主要收入来源。
2. 2. The bonds were issued to fund the construction of a new bridge.
   这些债券是为了资助建造一座新桥而发行的。
3. 3.The bond market is highly volatile, and investors need to be cautious when buying bonds.
   债券市场波动很大，投资者在购买债券时需要谨慎。