1. I spend a lot of money on clothes.
2. How much did you spend on your vacation?
3. He spends most of his income on food and rent.
4. Don't spend all your money at once!
意思2：度过、消磨
1. She spends her weekends hiking in the mountains.
2. He spent the afternoon playing video games.
3. I spent my childhood in a small town.
4. Let's spend some time together and catch up.
意思3：（动物）虚度光阴、度日如年
1. The lion spends most of the day sleeping.
2. The old dog spends his days lying in the sun.
3. Cats love spending their time napping.
4. The bear spends the winter months hibernating.
意思4：用尽、耗尽
1. I have already spent all my savings.
2. She spent all her energy on the project.
3. The company spent millions on advertising.
4. Don't spend your time worrying about things you can't change.
意思5：投入、耗费
1.The company is planning to spend a lot of money on research and development.
2. He spent a lot of time and effort preparing for the exam.
3. The government has spent billions on infrastructure projects.
4. She always spends a lot of money on gifts for her friends and family.
注意，spend作为动词的时候，通常后面需要跟上花费的具体对象，如：money, time, effort等，否则就需要通过上下文来理解其具体含义。