1PREFIX (加在计量单位之前)表示“兆”,“百万”Mega- is added to nouns that refer to units of measurement in order to form other nouns referring to units that are a million times bigger. (加在计量单位之前)表示“兆”,“百万”
...a 100 megaton explosion.
100兆吨级的爆炸
...a two thousand megawatt surge in electricity.
2,000兆瓦的电流
2PREFIX (与名词、形容词构成合成词,强调大小、性质或重要性)Mega- combines with nouns and adjectives in order to emphasize the size, quality, or importance of something. (与名词、形容词构成合成词,强调大小、性质或重要性) [informal, emphasis]
Now he can begin to earn the sort of mega-bucks he has always dreamed about.
现在他可以开始挣他一直梦寐以求的大钱了。
...a Hollywood mega-star.
好莱坞的超级大腕
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