
HAPPY DRAGON #63 – Why does the frog not sink into water when it sits on a lily pad?
大書
銷售價格HK$64.00
原價HK$100.00
缺貨
HAPPY DRAGON #82 – Why do fruit-flavoured candies taste like fruit even though they contain none?
大書
銷售價格HK$64.00
原價HK$100.00
缺貨
HAPPY DRAGON #58 – Why do sharks not sink even without a swim bladder?
大書
銷售價格HK$64.00
原價HK$100.00
缺貨
HAPPY DRAGON #56 – Why are octopuses able to squeeze through a small hole?
大書
銷售價格HK$64.00
原價HK$100.00
缺貨
HAPPY DRAGON #52 – Why do planes leave behind a white trail in the sky?
大書
銷售價格HK$64.00
原價HK$100.00
缺貨
HAPPY DRAGON #80 – Why do we need to wear a mask when we have a cold?
大書
銷售價格HK$64.00
原價HK$100.00
缺貨

















