Expressing “Altogether / In total” with “gòng”

本次调查一共涉及十二个地区，收集到的有效样本超过两千份。

Běn cì diàochá yí gòng shèjí shí’èr ge dìqū, shōují dào de yǒuxiào yàngběn chāoguò liǎng qiān fèn.

This investigation covered twelve regions in total and collected more than two thousand valid samples.

从准备到实施，这个项目总共花了将近三年的时间。

Cóng zhǔnbèi dào shíshī, zhège xiàngmù zǒnggòng huā le jiāngjìn sān nián de shíjiān.

From preparation to implementation, this project took nearly three years in total.

这份材料看起来不多，但前后修改过很多次，算下来总共已经写了十几万字。

Zhè fèn cáiliào kàn qǐlái bù duō, dàn qiánhòu xiūgǎi guo hěn duō cì, suàn xiàlái zǒnggòng yǐjīng xiě le shí jǐ wàn zì.

This material may not look like much, but after many revisions, it adds up to more than one hundred thousand characters in total.