User talk:Yinhanliu/sandbox
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- Such a nice day todayYinhanliu (talk) 23:35, 20 January 2018 (UTC)
Dear Professor Tienson, could you please have a look at my sandbox page? I haven't finished editing, but I want to have you check about the image that I inserted in.thank you — Preceding unsigned comment added by Yinhanliu (talk • contribs) 03:07, 9 February 2018 (UTC)