back wall

• 后壁

词汇搭配

• have one's back to the wall 处境困难
• fight with one's back to the wall 拼死斗争
• have one's back at the wall 被逼到没退路,负隅死...
• back to the wall 落入圈套
• with one's back to the wall 困兽犹斗地