·2,447,543篇论文数据，部分数据来源于NoteExpress
From the main road to the front door, the area surrounding the property is lined with paver stone and protected by a gated entry and security system.
FORBES: Bruce Willis Lists $15M Lakeside Ranch in Idaho
Failing sometimes is inevitable unless one is protected from competition by regulation or entry barriers.
FORBES: Off With Their Heads! The Fantasy Google Monopoly
Furthermore, the market share is protected by "substantial" barriers to entry.
BBC: USA versus Microsoft: The fifth week
应用推荐
模块上移
模块下移
不移动