介词
中文翻译：用于
同义词：
['because', 'for', 'as', 'since', 'owing to']
例句：
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1. She decided to go to the park for a picnic.
她决定去公园野餐。
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2. The reason for his absence was due to illness.
他缺席的原因是生病了。
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3. I'm grateful for your help because it meant a lot to me.
我感激你的帮助，因为这对我意义重大。