The discussion of Listing 2 points out an unusual construct: Person_.age, which is a designation for the persistent age attribute of Person.

讨论清单2时指出了一个不常见的构造：Person _ . age，它表示Person的持久化属性age。

youdao

"In an age of increasing international travel and competition we will put the subject on the agenda for discussion with our international colleagues, " Bittar added.

CNN: Trainer who doped leading horses banned for eight years