Learning on 05/13/2026
5月 歯周病 4月May 13, 2026, 5:27:05 AM
Study time: 4 minute(s)
Today's learning: 8
New: 22
Consecutive study days: 8
Difficult review: 1
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May 13, 2026, 5:27:05 AM
Study time: 4 minute(s)
Today's learning: 8
New: 22
Consecutive study days: 8
Difficult review: 1