PeterCBWang

If the 29th  days will be 50% of the bottle, 30th day will be full (50% x 2 = 100%).8 h4 I( I" \8 ?$ }
Answer is 29 days!
# p. P7 i/ l" ]6 c1 @* w' A, L3 UTVBNOW 含有熱門話題，最新最快電視，軟體，遊戲，電影，動漫及日常生活及興趣交流等資訊。plz answer