2 sentences

1. 他是公司的一名中层管理人员。

   tā shì gōng​sī de yī míng zhōng​céng guǎn​lǐ rén​yuán.

   He is a middle manager in the company.

   Source: Dong Chinese Dictionary

2. 干旱季节，管理人员会准时开启水库的闸。

   gān​hàn jì​jié, guǎn​lǐ rén​yuán huì zhǔn​shí kāi​qǐ shuǐ​kù de zhá.

   During the dry season, the managers open the reservoir's sluice gates on schedule.

   Source: Dong Chinese Dictionary