to decline; to drop; to fall; to go down; to decrease[cedict]
到
dàoㄉㄠˋ
to (a place); until (a time); up to; to go; to arrive[cedict]
四千
sì qiānㄙˋ ㄑㄧㄢ
four thousand; 4000[cedict]
尺
chǐㄔˇ
a Chinese foot; one-third of a meter; a ruler; a tape-measure; a musical note on the traditional Chinese scale; one of the three acupoints for measuring pulse in Chinese medicine[cedict]