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ก68–โ–ฺ ‰๑“šŒ‹‰สก
•sณ‰๐I
ณ@‰๐Fcontent
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ณ‰๐”F17–โ

‘ๆ69–โ–ฺ
Œ‹‰สEi = resultj
purpose
occasion
content
outcome
solution


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