a. 明确无误的；清晰生动地

v be fully aware or cognizant of

v perceive (an idea or situation) mentally

v make real or concrete; give reality or substance to

v earn on some commercial or business transaction; earn as salary or wages

v convert into cash; of goods and property

v expand or complete (a part in a piece of baroque music) by supplying the harmonies indicated in the figured bass