reserve source of cash

例句：

1. 1. Thecompany has reserved a large portion of itsprofits for the next year's expansion.
   该公司已预留了大部分利润用于明年的扩张。
2. 2. She reserved her seat in thefront row for her son.
   她为儿子预留了前排的座位。
3. 3. The governmenthas reserved some land for future development.
   政府已预留一些土地用于未来的发展。