- 問題詳情: Pinyinisausefultool,which61________(teach)inChinatoschoolkids.Itisnotmerelyusedbywesternerslikeus.IthasprovedtobeausefultoolforChinesepeople62______(they)tolearnstandardpronunciationintheirearlyeducation. Thefirststepistolearnhow63______...
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