when study in classroom don't under

when study in classroom don't understand and students shy to ask with teacher can use smartphones for answers
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ผลลัพธ์ (อังกฤษ) 1:

when study in classroom don't understand and students shy to ask with teacher can use smartphones for answersTo find the answer.

ผลลัพธ์ (อังกฤษ) 2:

when study in classroom do not understand and students shy to ask with teacher can use smartphones for answers
to find an answer.