write/writer/writing

write /rait/ vi. & vt. 写，书写：write in ink 用墨水写The pen writes smoothly.这笔书写流畅。  write back 写回信：I received his letter two weeks ago, but I forgot to write back. 我两星期前收到他的信，但忘记给他回信了。 write down 写下，记下：Write your idea down while it’s clear in your mind. 趁脑子记得清楚时把你的想法写下来。write to 写信给: He wrote to his parents yesterday. (= He wrote his parents a letter yesterday.) 他昨天给父母写了封信。write off 取消，勾销：write off one’s debts 一笔勾销某人的债务；write off a certain quantity of books 报废一定数量的书籍

 writer /ˈraitə/ n.［c］作者；书写者：the writer of the letter写信人；a well-known writer of children’s books著名的儿童读物作家

 writing /ˈraitiŋ/ n. ［u］ 1.著作，作品(常用pl.形式)：sb.’s writings on electronics某人关于电子学的著作； practical writing 应用文 2.(书)写，写作：reading and writing 读与写；a writing group 写作小组；writing ink 墨水；writing paper 写字纸