2 sentences

1. 奏章上批着一个朱红色的“俞”字。

   zòu​zhāng shàng pī zhe yī gè zhū​hóng​sè de“ yú” zì.

   A vermilion character 'Yu' was written on the memorial as a mark of approval.

   Source: Dong Chinese Dictionary

2. 俞教授是我大学时的老师，学识非常渊博。

   Yú jiào​shòu shì wǒ dà​xué shí de lǎo​shī, xué​shí fēi​cháng yuān​bó.

   Professor Yu was my teacher in college; he is very knowledgeable.

   Source: Dong Chinese Dictionary