管理员每天早上7点到达大楼。

The ___janitor arrives at the building every morning at 7 a.m.

他在办公楼当管理员，而他妻子在酒店当清洁工。

He works as a ___janitor in the office building, while his wife is a cleaner in a hotel.

学校雇了一位新管理员来保持教室的清洁。

The school hired a new ___janitor to maintain the cleanliness of the classrooms.