hechi  Jul 2, 2026, 8:29:33 PM Study time: 2 minute(s)
Today's learning: 27
Consecutive study days: 75
Difficult review: 1
世界遺産検定2級 化石出土地帯 草原

hechi  Jul 2, 2026, 7:12:21 AM Study time: 2 minute(s)
Today's learning: 29
Consecutive study days: 74
Difficult review: 1
All tasks completed!
世界遺産検定2級 化石出土地帯 固有の生態系

hechi  Jun 30, 2026, 6:43:47 AM Study time: 3 minute(s)
Today's learning: 35
Consecutive study days: 72
Difficult review: 1
All tasks completed!
世界遺産検定2級 湖・湿地帯 化石出土地帯

hechi  Jun 28, 2026, 8:23:01 PM Study time: 1 minute(s)
Today's learning: 13
Consecutive study days: 71
Difficult review: 1
世界遺産検定2級 化石出土地帯 混ざり合う文化

hechi  Jun 28, 2026, 6:43:09 AM Study time: 5 minute(s)
Today's learning: 44
Consecutive study days: 70
Difficult review: 1
All tasks completed!
世界遺産検定2級 化石出土地帯 固有の生態系

hechi  Jun 25, 2026, 8:41:19 PM Study time: 4 minute(s)
Today's learning: 39
Consecutive study days: 68
Difficult review: 1
世界遺産検定2級 化石出土地帯 火山

hechi  Jun 23, 2026, 8:42:10 PM Study time: 3 minute(s)
Today's learning: 25
Consecutive study days: 66
Difficult review: 1
世界遺産検定2級 化石出土地帯 絶滅危惧種