是以 (shì yǐ) — therefore; hence (formal, literary)

Definition

Examples

• 是以，我们必须采取有效措施保护环境。
  shì yǐ, Wǒ men bì xū cǎi qǔ yǒu xiào cuò shī bǎo hù huán jìng.
  Therefore, we must take effective measures to protect the environment.
• 他勤学苦练，是以技艺大进。
  Tā qín xué kǔ liàn, shì yǐ jì yì dà jìn.
  He studied and practiced diligently, hence his skills improved greatly.
• 双方意见分歧很大，是以谈判未能达成协议。
  Shuāng fāng yì jiàn fēn qí hěn dà, shì yǐ tán pàn wèi néng dá chéng xié yì.
  The two sides had great differences of opinion, therefore the negotiations failed to reach an agreement.

Origin