过去式：Spend
Spend，这个单词听起来很普通，但它的含义却非常丰富。它可以用来表示花费、消费、奉献等意思。
Spend可以表示花费，比如说你买了一件商品，或者参加了一个活动，这些活动让你花费了金钱。 spend也可以表示消费，比如说你去了一家商店，买了一些物品，这些物品是你用来满足自己需求的一部分。
Spend还可以表示奉献，比如说你为社会做出了贡献，或者为慈善机构捐款，这些行为让你付出了精力和时间，但最终目的是帮助那些需要帮助的人。
spending
Spend是一个动词，表示花费、消费、奉献等意思。它可以用来描述一个人的行为，也可以描述一个社会的行为。
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