一口 1.(表示口氣堅(jiān)決) with certainty; readily; flatly 一口答應(yīng) readily agree; readily promise; 一口否認(rèn) flatly deny; 一口回絕 flatly refuse; 一口咬定 assert categorically; accuse definitely2.(純正) pure 講一口地道的英語 speak idiomatic english3.[量] a mouthful; a bite 一口蛋糕 a bite of cake; 呷一口威士忌 take a nip of whisky; 今天我們一口飯都沒吃。 we have not had a bite today. 他要一口把它吃掉。 he wants to eat it up at a mouthful
一口氣 1.(一口氣息) one breath 深吸一口氣 draw a deep breath; 長嘆一口氣 with a long sigh; 寬慰地松了一口氣 breathe [give; heave] a sigh of relief; 他嘆了一口氣, 慢慢地坐到位子上。 he slowly sat on the seat with a sigh.2.(不間斷地) in one breath; without a break; at one go; at a stretch 一口氣跑到家 rush to one's home at one go; 他一口氣讀完了那本小說。 he finished reading the novel at one sitting