由于

owing to;due to;thanks to;because of;on grounds of
～改革开放，中国发生了翻天覆地的变化。Thanks to the policy of reform and openingup,earth-shaking changes have taken place in China./～交通阻塞，我误了航班。I missed my flight owing to traffic jam./～粗枝大叶造成的错误mistakes due to carelessness/～健康原因on health grounds/～种种原因owing to various reasons (or all sorts of reasons)