finite progression series [数] 有限级数
geometric progression geometric series 等比数列
arithmetic progression arithmetic series 等差数列
progression series
发展系列
以上为机器翻译结果，长、整句建议使用 人工翻译 。
We are executing that idea across a lot of channels, and NASCAR has such a rich history of innovation that incorporating our mission with NASCAR in its new video series was a natural progression.
FORBES: UPS Packages New Story-Telling Marketing Platform And Delivers "Ideas that Changed NASCAR"
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