我在这家公司工作期间学到了很多。
wǒzài zhè jiā gōngsī gōngzuò qījiān xué dàole hěnduō 。
I learned a lot during my time working at this company.
考试的期间大家都很紧张。
kǎoshì de qījiān dàjiā dūhěn jǐnzhāng 。
Everyone was very nervous during the exam period.
这个项目的完成期间为三个月。
zhègè xiàngmù de wánchéng qījiān wéi sāngèyuè 。
The completion period for this project is three months.