Third, write the KeyManger class to maintain the surrogate keys for each registered table. The KeyManager class will provide two methods.

第三，编写KeyManger类来维护每个已注册表的代理键。

youdao

That reflects everything from tastes in food (Coca-Cola rather than Chianti) to holidays (Florida rather than Florence), and raises the suspicion that upper-class anti-Americanism may be surrogate snobbery.

ECONOMIST: British anti-Americanism is a muddle not a menace