![2](/images/qa/2_60.png) |
2016-04-06 05:17:14
Insert your card ●●●●●● or ●●●●●●r xr The 18 pages of the ●●●●●●ok are ●●●●●●n in the ●●●●●●'s ●●●●●●●●●●●●c ●●●●●●rds ●●●●●● ●●●●●● and ●●●●●●e ●●●●●●gs of the ●●●●●● in bird wings, along with the ideas of lift and drag, air flow and ●●●●●●y.
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