首頁›Browse›E›extra setextra set編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看extra setextra set — 名詞名詞1. a quantity of items that is additional or spare1.名詞釋義備用組a quantity of items that is additional or spare例句I always keep an extra set of keys in my bag.