bì lì qiān rèn
(idiom) (of a cliff, mountain etc) steep; lofty; imposing
壁
bì
wall
立
lì
to stand
千
qiān
used in 鞦韆|秋千[qiu1 qian1]
仞
rèn
unit of length used in ancient times, equal to 7 or 8 Chinese feet 尺[chi3]
