Wiktionary
vb. (en-third-person singular of: trade in)
Usage examples of "trades in".
And Bert touched the fringe of a number of trades in succession—.
A good example is the convergent evolution of a whole range of mammal trades in the separate continents of South America, Australia, and the Old World.
You can't learn all the basic manual trades in your spare time in a limited number of years but you can acquire a jackleg but adequate knowledge of the more important ones, in the time we have left.
Then for a long time I was a sailor, a caravan guard, a mercenary soldier, a wandering bard, any number of trades in which a man may come and go little noticed.
Ordinarily this was the most agreeable part of a voyage in a well-found ship, this rolling down the Trades in warm but flot yet oppressive sunshine, never touching sheet nor brace, the people making their hot-weather clothes on deck by day and dancing on the forecastle in the evening.