foreboding，foregleam，omen，portent，aura ；

[例句] 我有了头痛的先兆。 I had the beginnings of a headache.

[例句] 乌云是下雨的明显先兆. Black clouds are an unmistakable sign of coming rain.

omen，presage，sign，harbinger，mega ；

[例句] 上个月提议的变动在3月份的预算中已经有所预兆了。 The change proposed last month was foreshadowed in the March Budget.

[例句] 我在一匹名叫“预兆”的赛马上下了10英镑的赌注。 I bet £10 on a horse called Premonition.

omen，portent，sign，evidence，premonition ；

[例句] 这节诗描绘了春天来临的三个征兆。 This verse describes three signs of spring.

[例句] 忽略早期征兆可能会导致疾病。 Ignore the early warnings and illness could result.

ill omen，boding of evil，knell，threat，[电影]The Omen；

[例句] 凶兆显而易见。如果我们对此毫无行动，就只能怨自己了。 The writing is clearly on the wall. If we do nothing about it, we shall only have ourselves to blame.

[例句] 鲁易用他狡猾的灰色眼睛打量着我,预示凶兆般地摇着头. Louis surveyed me with his shrewd gray eyes and shook his head portentously.

megabit (Mb) ；

[例句] 佩里说,许多人对诸如RAM和千兆位之类的术语望而生畏. Many are intimidated by terms such as RAM and gigabits, Perry said.

[例句] 千兆位以太网和ATM技术是目前主干网中普遍应用的网络技术. Gigabit Ethernet and ATM are mechanisms widely employed in network at present.

kilomega，giga，gillion ；

[例句] 这个系统内存 256 兆字节，可扩充到 2 千兆字节。 The system has 256 MB RAM, expandable to 2GB.

[例句] 板载千兆网络接口和8声道音频输出. Onboard gigabit network interface and 8 channel audio output.

good omen，propitious sign，auspice ；

[例句] 这是否终于可以视作和平的吉兆了？ Could this at last be a good omen for peace?

[例句] 我总是想,厄运之后将会出现吉兆. I can't help liking to think that out of all this evil good will come.

ill omen，bad omen，evil boding，threat，[电影]Presage；

[例句] 迷信的人认为那是一种恶兆. The superstitious regard it as a bad omen.

[例句] 这将排挤生产性投资,并带来通胀恶兆. That will crowd out productive investment and bodes ill for inflation.

omen，forewarning，premonition，foreshadow，auspice；

[电] megawatt，megawatt electric (MW (E)) ；

[例句] 在该大坝中,仅仅一组主发电机就可发电700兆瓦. Just one of the dam's main generators produce 700 megawatts of electricity.

[例句] 目前世界上已安装的风力发电总装机容量达到了121兆瓦. The world currently has 121 gigawatts of installed wind energy capacity.

[电子] megahertz (MHz)，megacycle per second，megacycle，MHZ ；

[例句] 这台机器的时钟频率为1.6千兆赫。 This machine has a clock speed of 1.6GHz.

[例句] 初始服务需要10兆赫宽的频带。 For an initial service, a 10 megahertz-wide band of frequencies will be needed.

omen ；

[例句] 8月份的汽车销量暴跌，这可不是个好兆头。 Ominously, car sales slumped in August.

[例句] 已经有问题了，这不是好兆头。 Already there were problems. It didn't augur well.

megacycle ；

[例句] 我们在一兆周内造了两条环球线路！ We did two global routes in one megacycle!

[例句] 已在广州管制在119.1兆周建立联系, 请求脱离塔台波长. Contact Guangzhou Control on 119.7 MC , request to leave Tower frequency.

Meg-ohmmeter，megameter，megger，megohm meter ；

[例句] 电泵在使用前, 应用兆欧表检查电机绝缘电阻. Pump before use, application table to check the electrical insulation resistance.

[计] MB，megabyte，megabytes ；

[例句] 这个系统内存 256 兆字节，可扩充到 2 千兆字节。 The system has 256 MB RAM, expandable to 2GB.

[例句] 一种存储单位,等于1, 048, 576字节. 概略地说, 为一兆字节. A unit of storage equal to 1, 048 , 576 bytes. Loosely, one million bytes.

[医] megohm ；

[例句] 电泵在使用前, 应用兆欧表检查电机绝缘电阻. Pump before use, application table to check the electrical insulation resistance.

[例句] 然后摇测电机的绝缘电阻,其值不低与50兆欧. And shake the electrical insulation resistance measurement and its value is not lower than 50 megohm.

megaton ；

[例句] 这颗彗星重约500兆吨, 面积相当于纽约市大小. The comet, weighing about 500 trillion tons, area equivalent to the size of New York City.

[例句] 话外音: 一百兆吨的尘石被抛入大气层. Voice: One hundred trillion tons of dirt and rock hurled into the atmosphere.

megampere ；

[体]megajoule ；

[化] megohmmeter ；