大都市: a metropolis, a large city

お大事に: get well soon, take care of yourself

代理: surrogation, proxy

置く: to put / (following a て-form verb) to do in advance; to do for some future purpose

the actual site where something occurs: (on) the ground, firsthand / practice

calm, composed

emotional composure, calmness

become affixed to a surface, often tartar to the surface of teeth / settle to the bottom

a location chosen for industry or the development of businesses

here and there