noun ダウンロード 🔗共有 交換台 The electronic panel that is used to direct telephone calls to the desired recipient. Examples : "The switchboard operator directed the call to the principal's office. " 交換手のオペレーターは、校長室に電話を転送しました。 electronics communication technology machine device utility signal toeic AIとチャット語彙ゲーム読解練習
noun ダウンロード 🔗共有 交換台 A device that directs electricity from one source to another. Examples : "The electrician checked the switchboard to find the source of the power outage in the house. " 電気技師は、家の停電の原因を見つけるために交換台を調べました。 electronics technology device electric communication machine system toeic AIとチャット語彙ゲーム読解練習