To retain something means to continue to have that thing.
例句
The interior of the shop still retains a nineteenth-century atmosphere...这家商店的内部装修仍然保留着19世纪的风格。He retains a deep respect for the profession...他对这个职业仍然深怀敬意。
VERB
预聘,付定金聘请(律师)
If you retain a lawyer, you pay him or her a fee to make sure that he or she will represent you when your case comes before the court.
例句
He decided to retain him for the trial.他决定聘请他为出庭律师。