1. 夏   half-yearly   week   summer   weekly   Hint Half-n-half Clue   2. 季節風   quarterly   annual   biannual   monsoon   Half-n-half Clue   3. 週   week   winter   summer   spring   Half-n-half Clue   4. 2週間   quarter   quarterly   autumn, fall   fortnight   Half-n-half Clue   5. 毎月   spring   weekly   biannual   monthly   Half-n-half Clue   6. 年2回   quarterly   biannual   annual   winter   Half-n-half Clue   7. 四半期   weekly   daily   biannual   quarter   Half-n-half Clue