swap?�が?�詞?�し?�使?�れ?�場?�、物?�人?�元?�の位置?�状?�か?�新?�い?�の?�交?�さ?�る?�と?�示?�。具体的?�例?�以下に示す??Teachers will never be replaced by personal computers during the classroom. These measures on no account change the need for regular basic safety checks.