[yóu yú]
owing to; thanks to; as a result of; due to; in virtue of; because of; in that; on account of; since
Owing to the help from his comrades, he has made rapid progress.
由于同志们的帮助，他进步很快。
Since production has risen steadily, the personal income of the commune members has increased year by year.
由于生产不断发展， 社员们收入逐年增加。