(noun.) the skilled practice of a practical occupation; 'he learned his trade as an apprentice'.
(noun.) the commercial exchange (buying and selling on domestic or international markets) of goods and services; 'Venice was an important center of trade with the East'; 'they are accused of conspiring to constrain trade'.
(noun.) the business given to a commercial establishment by its customers; 'even before noon there was a considerable patronage'.
(verb.) exchange or give (something) in exchange for.
(verb.) turn in as payment or part payment for a purchase; 'trade in an old car for a new one'.
(verb.) engage in the trade of; 'he is merchandising telephone sets'.
(verb.) be traded at a certain price or under certain conditions; 'The stock traded around $20 a share'.
整理:佩吉
整理:露丝