attache
词根词缀：
attach v. 附上；依恋
at 加强 + tach 钉；钉子 → 牢牢钉上 → 附上
attache n. 使馆随员
at 表加强 + tach 钉；钉子 + e → 背负国家使命〔的人〕→ 使馆随员
attachment n. 附件；附着
attach 附上；依恋 + ment 表名词 → 附件；附着
detach v. 拆开
de 离开 + tach 钉；钉子 → 把钉上的分开 → 拆开
tack v. 用平头针钉住；缝合
unattached adj. 独立的
un 无 + attach 附上；依恋 + ed 表形容词 → 没有附加任何东西的 → 独立的
数据来源：新东方英语词汇速记大全
相关例句：
Foreign developed countries attache great importance to the development of micro gas turbine. Owing to the advanced technology of floating ring bearing, the micro gas turbine has greatly enhanced energy efficiency and economic value.
国外发达国家非常重视微型燃气轮机的发展，并且已经将先进的浮环轴承技术应用到微型燃气轮机上，这极大的提高了微型燃气轮机的能源利用效率和经济价值。
America's naval attache in Nazi Germany is certainly somebody. You could strike a blow for preparedness, or a two-ocean Navy.
驻纳粹德国的美国海军武官当然是个人物，您可以给军事准备和两洋舰队打气。
The culture attache aches over after attending a banquet.
文化参事参加完宴会浑身酸疼。
I wanted to express a hasty feeling through the attache case, and wanted to find a job and I laid something in the bag.
公文包是因为我当时想要一种很匆忙的感觉，像是匆忙地要找个事做那样，包里还要放点东西。
He went off to the station in a hurry and left behind his newspaper and attache case.
他匆忙去了车站，忘记带走报纸和公文包。
An attache who is a specialist in cultural matters.
专门于文化事务的大使专员。