n.维持，保持，保养，保管，维护，维修...

The island may be reached by boat from the mainland.这个岛屿可以从大陆乘小船到达。She was going to Nanaimo to catch the ferry to the mainland.她准备去纳奈莫乘渡船回大陆。Ischia was now connected to the mainland water supply.伊斯基亚这时已经通上了大陆的水。...

n.主帆，主要课程，主菜，大菜，主航道...

n.静脉注射[打针]...

main subject的音标：main subject的英式发音音标为：[mein 'sʌbdʒikt]main subject的美式发音音标为：[men 'sʌbdʒekt]...

[医]把毒品直接注入静脉...

mainly的近义词有：mainly, chiefly, greatly, largely, mostly, primarily, principally, generally。下面这些副词均可表示"主要地，大量地"的含义：mainly：指主要部分，突出在一系列事物中的相对重要性。chiefly：侧重某人或某物在众多的人或物中占主要和显著地位。greatly：通常强调程度的高。largely：着重范围或分量大大超过别的成分。mostly...

You begin to understand what actions were the mainspring of the story.你开始体会到是什么样的行动在推动这个故事的发展。My life has been music, and a constant search for it has been the mainspring of my life.我以音乐为生，对音乐的不懈探索已经成为我生活的动力。Her jealousy...

mainstay的音标：mainstay的英式发音音标为：['meɪnsteɪ]mainstay的美式发音音标为：['menˌste]...

All knowledge emanated from the mainsprings of Christian belief.所有知识都主要源出于基督教信仰之中....

We see him snorting and mainlining cocaine.我们看见他吸食并注射可卡因。...

可维修性，可维护性...

n.缅因州（美国东北角的州）...

domain的复数形式为：domains...

mainland的复数形式为：mainlands...

The publisher remaindered the books.这家出版社廉价出售剩余书籍....

IBM has also shifted its focus from mainframes to personal computers.IBM公司也把重心从特大型机转向了个人电脑。Digital priced the new line at less than half the cost of comparable mainframes.Digital公司新产品的定价比同类主机的一半还要低。This made its mini-com...

mainframe的复数形式为：mainframes...

legerdemain的音标：legerdemain的英式发音音标为：['ledʒədəmeɪn]legerdemain的美式发音音标为：['ledʒərdəmeɪn]...

maintenanceability的音标：maintenanceability的英式发音音标为：[meɪntənənsə'bɪlɪtɪ]maintenanceability的美式发音音标为：[meɪntənənsə'bɪlɪtɪ]...

main的近义词/同义词有：most, foremost, primary, leading, important, first, dominant, principal, chief, cardinal, central, significant, paramount, grand, chief, foremost, leading, principal, predominant, dominant, important, premi...

The certified reference material mainly consists of polyisobutylene and hexadecane with good homogeneity and stability.聚合物流变特性标准物质主要由聚异丁烯和十六烷组成.The funds needed will mainly be drawn from accumulation within the enterpris...

maintain的音标：maintain的英式发音音标为：[meɪn'teɪn]maintain的美式发音音标为：[men'ten]...

in the main的音标：in the main的英式发音音标为：[in ðə mein]in the main的美式发音音标为：[ɪn ði men]...

A forest fire is sweeping across portions of north Maine this evening.今晚一场森林大火正席卷缅因州北部的部分地区。I had gone to Maine looking for a place to work.我去了缅因州找工作。Maine had a soothing effect upon Babbitt.缅因州对巴比特有一种安神作用....

remained的音标：...

adj.可维持的，主张的...

v.保持( maintain的第三人称单数 )，保养，坚持，保卫...

domain的近义词有：sphere, domain, field, territory, province。下面这些名词均含"范围，领域"的含义：sphere：指有明显分界线的范围或领域，强调彼此不会干扰、跨越，各不相关。domain：指知识艺术、兴趣或人类活动的领域。field：主要指经选定在一段时间内作专题研究的方面或领域，含夸张意味。territory：指科学知识、活动等的领域或范围。province：即可指科学、艺术、学问的领...

mainline的现在进行时为：mainlining...