封山的英文：
seal a moutain pass
n. 海豹；图案，印章；封印；保证，誓约；标志，象征
v. 保证；密封；确定；盖章；密封
A stamp or seal meant to be impressed.
图章用来盖戳的图章或印章
The experience seals their friendship.
这一经历确定了他们的友谊。
Sealing is prohibited in many countries.
许多国家禁止捕海豹。
v. 通过；传递；及格；经过
n. 穿过，经过；通行证，护照，入场证
This coin will not pass.
这钱币不通用。
pass a messenger
传递引绳
The evening passed as evenings mostly pass at Italian theatres
那一声过得很平淡，象意大利戏院里的大多数夜晚一样