Working, often with a strict time limit or deadline.
勤務中、しばしば厳しい時間制限や締め切りがある。 (kinmichu shibashiba kibishii jikan seigen ya shimekiri ga aru)
"I’m on the clock today, so I can’t waste any time."
"今日は勤務中なので、時間を無駄にできません。" (kyou wa kinmichu nanode jikan o mudani dekimasen)
someone who is very careful about spending money
an important or influential person
the most advanced or innovative
to slow the pace of activity
to not lose confidence or courage
to fail because of trying to do two things at once