Word Detail

之所以
zhī suǒ yǐ
(after a noun N and before a predicate P) the reason why N P, Example: 我之所以讨厌他 "the reason why I dislike him (is ...)"
HSK 7-9 (v3.0)

Examples

之所以……是因为……
Zhīsuǒyǐ... shì yīnwèi...
The reason why... is because...