In an Entrapping Ground-Sun Zi
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In an Entrapping Ground by Sun Zi
English: An area that is easy to enter but difficult to retreat from is called an entrapping ground. On an entrapping ground, when the enemy is ill-prepared in defence, one can launch attacks to capture successfully. However, if the enemy proves to be well prepared and the assault fails, one is hard to put to a beat a retreat and is thus placed in a very disadvantageous position.
Modern: 可以前进，难以后退的地域称作为“挂”。在挂形地域，敌人若无防备，就可以出击取胜；若敌人有所防备，出击而不能胜，又难以退回，就不利了。
Original: 可以往，难以返，曰挂。挂形者，敌无备，出而胜之；敌若有备，出而不胜，难以返，不利。
Business Application:
From: Sun Zi Art of War Chapter 10