More N1 vocabulary

• 輪りんcounter for wheels and flowers
• 月謝げっしゃmonthly tuition fee
• 倍率ばいりつdiameter; magnification
• 乏しいとぼしいmeagre; scarce; limited; destitute; hard up; scanty; poor
• 光熱費こうねつひcost of fuel and light
• 有益ゆうえきbeneficial; profitable