By totally disallowing any direct access to memory, an entire huge, messy class of security attacks is ruled out.
禁止程序直接访问内存，那么整整一大类安全攻击都被彻底清除了。
2
The court ruled unanimously that the lawsuit against Wal-Mart Stores Inc. cannot proceed as a class action, reversing a decision by the 9th U. S. Circuit Court of Appeals in San Francisco.