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nikolatesla1856ad

nikolatesla1856ad heeft een opmerking geplaatst, 28 juli 2019 21:45
Cheers Ewan. Thanks for your prompt reply. I thought that may be the case. Is there a web page with this kind of info on for newcomers?
nikolatesla1856ad heeft een post gemaakt, 28 juli 2019 14:41
Starred videos, can someone explain what this indicates?

I presume all platforms will be the same but I'm using the khan academy app on an android phone. A tick in the play button symbol to the left of the video title is used to indicate that the video ...
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