岗位: a post, a job...
漂浮: to float, to hover, to drift (also fig., to lead a wandering life), to rove, showy, superficial...
服务员: waiter, waitress, attendant, customer service personnel...
缤纷: vast and various, rich and diverse...
由衷: heartfelt, sincere, unfeigned...
那些: those...
津津有味: with keen interest (idiom), with great pleasure, with gusto, eagerly...
精品: quality goods, premium product, fine work (of art)...
分辨: to distinguish, to differentiate, to resolve...
理论: theory, to argue, to take notice of...