同根派生 droned on相關(guān)詞英漢例句The lecturer droned on for hours.講課人單調(diào)乏味地講了好幾個(gè)小時(shí)The chairman droned on for hours.主席一直以沉悶的語調(diào)講了幾小時(shí)。droned on更多例句