2 sentences

1. 他改进了工作方法，从而提高了效率。

   tā gǎi​jìn le gōng​zuò fāng​fǎ, cóng'ér tí​gāo le xiào​lǜ.

   He improved his working methods, thereby increasing efficiency.

   Source: Dong Chinese Dictionary

2. 他打算利用手中的证据要挟对方，从而获利。

   tā dǎ​suàn lì​yòng shǒu zhōng de zhèng​jù yào xié duì​fāng, cóng'ér huò​lì.

   He intends to use the evidence in his hands to blackmail the other party for profit.

   Source: Dong Chinese Dictionary