现场的每个人都努力工作，按时完成隧道的建设，在工人们进行这项伟大工程的同时，还开发了10多种最新的技术。

Everyone at the site worked hard to finish building the tunnel on time and more than 10 latest techniques were developed while the workers were doing this great project.

youdao

现场的每个人都努力工作，按时完成隧道的建设，在工人们进行这项伟大工程的同时，还开发了10多种最新的技术。

Everyone at the site worked hard to finish building the tunnel on time and more than 10 latest techniques were developed while the workers were doing this great project.

youdao