2 sentences

1. 所有的额外费用都已计算在内。

   suǒ​yǒu de é​wài fèi​yòng dōu yǐ jì​suàn zài​nèi.

   All additional costs have been included.

   Source: Dong Chinese Dictionary

2. 我们这个学习小组一共有五个人，包括他在内。

   wǒ​men zhè​ge xué​xí xiǎo​zǔ yī​gòng yǒu wǔ gè rén, bāo​kuò tā zài​nèi.

   Our study group has a total of five people, including him.

   Source: Dong Chinese Dictionary