1. The older students fell out quietly and drifted away to enlistments.
    年纪大点的学生先后悄悄地退学，入伍当兵去了。

2. Promotable enlistments, which allows a resource, such as a database, to take ownership of the transaction if it is the only entity participating in the transaction.
    可升级登记，如果某个资源是参与事务的唯一实体，则允许该资源（如数据库）取得事务的所有权。