因在于

1.
why…is… the reason why…is
... from … to … 从…到… why…is… the reason why…is… 原 因在于… 因在于… only… also… not only…but also… 不 而且… …
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Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard