lesson ②section (in an organization) ③counter for lessons and chapters (of a book)

section manager

after school (at the end of the day)

subject ②homework ③task

to impose (a tax, fine, etc.)

daily routine

to impose (a tax, fine, etc.)

set piece (of music)

course

extracurricular lesson

lesson one

public relations department (section, office)

section staff

general affairs section

personnel section

deputy manager

job (responsibility) of a section

research task

traffic division (of a police department)

criminal investigation department