billions of什么意思解释？

数以亿计的；亿万

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billions of造句

Biological systems have been doing this for billions of years.生物系统亿万年来一直都是这样。Billions of pounds are riding on the outcome of the election.几十亿英镑都取决于这次选举的结果。Israel accepted billions of dollars in war reparations.以色列得到了几十亿美...
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billions of怎么读？

billions of的音标：...
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