1. 翻译练习：他是在德国读本科期间提高了自己的德语能力。
He perfected his German during his undergraduate years in Germany.
It is during his undergraduate years in Germany that he perfected his German.
2. 造句练习
情景1: 提高语言能力
造句：If you want to hone your skills on French, why don’t you perfect your French in Paris?
情景2: 爱好与专业
造句：Everyone can take a photo with their almost omnipotent smartphones; however, one can never be a photography virtuoso without years of perfecting the skills.
