The President doesn't need a primer on national security.
总统对于国家安全是不需要读入门书的。
1.底漆,首涂油
2.初级读本,初学书;初阶,入门(书);(尤指宗教改革前的)小祷告书
3.【机】初给器;发火极;发火药;导火线;爆管,雷管;火帽;底火
4.【印】10点或18点活字的旧称
5.装填火药者;装雷管者;起动油泵者
6.【生化】引体
1.底漆,首涂油
2.初级读本,初学书;初阶,入门(书);(尤指宗教改革前的)小祷告书
3.【机】初给器;发火极;发火药;导火线;爆管,雷管;火帽;底火
4.【印】10点或18点活字的旧称
5.装填火药者;装雷管者;起动油泵者
6.【生化】引体
1.a substance used for preparing a surface for paint
2.a book that gives very simple instructions or basic information about something
1.The whole, a primer designed to give the lay executive a running familiarity with the most bitterly discussed economic question of the day.
整篇文章可被当做是专为外行管理人员提供的入门级文章，使他们对当时引发最激烈讨论的经济问题有一个初步的了解。
2.Let's take a look at how this whole process works, as it can be tricky to understand without a bit of a primer.
让我们看看整个过程是如何进行的，如果不了解一些基础知识的话这将很难理解。
3.An organic zinc primer for protection of structural steel in salt or weathering environment. Easy to apply. Cures to hard tough film.
本产品用于户外或盐性腐蚀环境下钢结构的保护。易施工，漆膜坚硬。
4.Some joists of the floor above did not back Tu cementing Primer, cement Man of moisture, damp floor, the floor will also bulging.
有的搁栅上面的地板背面没有涂封固底漆，水泥地的潮气漫上来，使地板受潮，也会使地板起拱。
5.This primer provides an overview of the two technologies and highlights the potential synergies between them.
本文讲述了这两种技术的概要知识，并强调了这两者之间潜在的协作能力。
6.This article has been just a primer to provide a taste of how easy list manipulation is in list-oriented languages like Scheme.
本文只是一个入门级读物，旨在让您体验了在Scheme等面向列表的语言中列表处理是何等简单。
7.SUPERIOR OIL STOP PRIMER mixes with the oil in the surface, penetrating deeply to tie up and lock in contamination.
SUPERIOR防油渗底漆将油渍与地面融合，能够渗入表层，锁固油污。
8.An early primer consisting of a single page protected by a transparent sheet of horn, formerly used in teaching children to read.
一种早期初级读物，即为一张盖有透明角片作为保护的书页，以前供儿童认字用。
9.Officials at the Defence Department thought it would be a good primer on Afghanistan for serving soldiers, veterans and politicians.
国防部的官员认为，对于正在服役的士兵、退伍的老兵和众多政客来说，这部戏剧都是对阿富汗战场的一个良好普及介绍。
10.The entire panel shall be vermin proof and factory painted with at least 2 coats of rust proof primer and colour approved by the owner.
整个小组的成员应证明和工厂害虫涂有至少2层防锈底漆和色彩批准证明它的主人。