dindexdauerschlaf./dou-er-shlahf/US // ˈdaʊ ərˌʃlɑf //窦文涛,窦建德,窦仕强,窦文治Definitionsn.noun · 名词1.›a form of therapy, now rarely used, that involves the use of drugs to induce long periods of deep sleep.Level 5More words in d →