2 sentences

1. 据此，我们决定修改原有的计划。

   jù​cǐ, wǒ​men jué​dìng xiū​gǎi yuán​yǒu de jì​huà.

   Based on this, we have decided to modify the original plan.

   Source: Dong Chinese Dictionary

2. 我们在原有的基础上进行了改进。

   wǒ​men zài yuán​yǒu de jī​chǔ shàng jìn​xíng le gǎi​jìn.

   We made improvements on the existing basis.

   Source: Dong Chinese Dictionary