兆 甲骨文象古时在龟甲上烧灼出现裂纹之形（右有弯曲一划，二直划：左有弯曲一划，一直划。兆字的原形）。《说文》注：“灼龟坼也。从卜， 象形。”兆即卜兆，炙灼龟甲后所显现并据以占卜之裂纹。引申兆头、吉兆、凶兆等。作动词，指预先显示。作数词，兆为一百万，古代指万亿，形容极多极多。兆赫，每秒钟震动100万次为一兆赫，
兆Ⅰ(名) sign; omen; portent Ⅱ(数) ① million; mega- ② a million millions; billion Ⅲ(动) portend; foretell
27 "trillion" is the divination of the results show.
Megabox as in ancient tortoise shells on the burning of the shape of a crack (right there is a bend of the plan, two straight: left a bend a stroke, has been designated. Trillion word prototype). "Shuo Wen" Note: "Burning turtle 坼 also. From the Bu, pictographic." Trillion trillion that is, after the shelling of the shells, and according to the divination of the crack. Extended oath, auspicious, omen and so on. As a verb. For the numerals, trillion for one million, refers to the ancient trillion, described as extremely many. Megahertz, 1 million times per second vibration of a megahertz,
Meg (a) million; port Ⅲ (motion) portend; foretell
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