write sth down
(a) put sth down in words on paper 将某事写在纸上
Write down the address before you forget it. 把地址写下来, 省得忘了.
(b) (in accounting) reduce the nominal value of (stock, goods, etc) (在记帐时)减低(存货、 现货等)的帐面价值
the written-down value of the unsold stock 被降低了的存货价格.