trial product; prototype model
commerce; trade; business
fee; charge; rate; material
when it comes to ...; where ... is concerned; if it's the case that ...; if it turns out that ...; if it's true that ...
amount sold; sales; proceeds; takings; turnover
rate; ratio; comparatively; contrary to expectations
itemization (of expenses); the items; breakdown; classification
cartage; transportation or shipping charges
this; our; the ... in question; right; justice; fairness
to be too numerous; to be too much
prior investment; upfront investment
order; system; structure; set-up; organization; organisation
to be profitable; to yield a profit
all one's power (strength, energy, efforts); one's utmost
to see (a doctor, etc.); to consult (someone)
humour; humor; safety; health; in a good mood; in high spirits
to board; to embark on; to get into (a car); to march into; to enter
to change clothes (on someone else, e.g. child, doll); to change the wallpaper or skin (of a smart phone, etc.)
rough-hewn; incomplete; unrefined; still in the process of being formed
high spirits; gleeful mood
finished product; finished goods; completed article
to appear on the market; to be in season (e.g. fruit); to circulate widely; to make the rounds; to go around
general; universal; ordinary; average; (arch.) the same; (arch.) no different
anyone; anybody; everyone; whoever
diffusion; spread; popularization; promulgation; familiarization
depending on; dependent on
addition; supplement; appending; appendix