供献

例句：

1. 1. He gave a lot of his time to the charity event.
   他为慈善活动提供了很多时间。
2. 2. She offered her help without expecting anything in return.
   她无偿地提供了帮助，没有期待任何回报。
3. 3. The company generously contributed to the cause of environmental protection.
   这家公司慷慨地为环境保护事业做出了贡献。