用膠杯，個膠杯會溶

測試燃燒是否要空氣, 用玻璃杯蓋住蠟燭就會熄。備課嘅時候又拗做呢個實驗嘅時候「玻璃杯唔夠用, 用膠杯得唔得」, 「用玻璃杯易打爛會好危險」, 無法相信成班大人有讀大學。做嘅時候, 班小學生用火機用得仲熟手過我。
小四常識學啲乜
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may june july
Anthony Li
·Follow
Jan 15, 2024
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用膠杯，個膠杯會溶
用玻璃杯會打爛係你嘅問題
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Written by Anthony Li386 Followers
·141 Following
男班長 at KisaBBB’s Cantonese 101 (廣東話BB班) on YouTube (discontinued) | Proofreader in Central | Twitter/Instagram: merryanthony
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