Traditional: 由於
由于 (yóu yú) means “due to; as a result of; thanks to; owing to; since; because”. It is an HSK 4 Chinese word (traditional 由於) in the HSK 3.0 vocabulary.
由于下雨,我没出去。
Yóuyú xiàyǔ, wǒ méi chūqu.
Because it rained, I didn't go out.
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