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adv (1)現(xiàn)在，此刻，目前(at this moment;at the present time)：I am living in England～. 我現(xiàn)在住在英國(guó)。I thought so once，but～I(xiàn) know better. 過(guò)去我也這樣想過(guò)，可是現(xiàn)在我明白多了。N～it is clearing up. 天現(xiàn)在放晴了。N～it would be a good time to go to France. 現(xiàn)在是去法國(guó)的好時(shí)候。It's～25 years since I came here. 我來(lái)這里至今已經(jīng)25年了。N～she began asking questions. 這時(shí)她開始發(fā)問(wèn)。

(2)立刻;馬上(at once，immediately)：I can't do it～— you'll have to wait. 我這會(huì)兒干不了，你得等等。Do come here～. 馬上就到這兒來(lái)。I must go～or it will be too late. 我這就得走，不然就太晚了。

(3)如今;現(xiàn)時(shí)(the present time or moment)[用于介詞后] ：The boy must be forty by～. 那孩子如今該有40歲了。The good-bye had lasted until～. 從那次分別直到如今才相見。But he was safe for～. 但他現(xiàn)在是安全的。Have you heard of that before～? 你在這之前聽說(shuō)過(guò)嗎?

(4)[不表示時(shí)間，而表示說(shuō)話人的語(yǔ)氣，包括說(shuō)明、命令、請(qǐng)求、警告、安慰等]：N～it's no good doing that.得了，那樣做是沒(méi)有用的。N～listen to me. 且聽我說(shuō)。No nonsense～. 別胡說(shuō)啦。N～what we have to do next is to write to the professor. 好了，下一步我們得給教授寫信了。

now and again/then 時(shí)而;不時(shí)：He still visits me～and then. 他仍不時(shí)地來(lái)看我。now，now (now then) 好(行)了;[表示告誡或引起注意等]：N～，～，stop crying. 得了，得了，別哭了。N～then，don't worry about it. 行了，別擔(dān)心啦。

now...now/then時(shí)而……時(shí)而…… ：N～it's hot then its cold—no one knows what to wear.天氣忽冷忽熱的，誰(shuí)也不知穿什么衣服好。

now then 1)(用以引導(dǎo)一個(gè)建議或話題)：N～then，how about going fishing? 我說(shuō)，釣魚去怎么樣? 2)(考慮下一步該做什么或該說(shuō)什么時(shí)用以表示停頓)：I must say I liked that，～then，what's next? 我必須說(shuō)我很喜歡那個(gè)，那么，下一個(gè)是什么呢?

now for sb/sth現(xiàn)在到了……;現(xiàn)在是……(用以表示開始(轉(zhuǎn)向)一個(gè)新的任務(wù)或議題)：The matter is settled. N～for the next question. 這件事解決了，現(xiàn)在來(lái)研究下一個(gè)問(wèn)題。

conj既然;由于(because or since something has happened，etc)[常與that連用]：N～that you are here，I can leave. 既然你在這兒，我可以走了。 N～you have left university，you will have to find a job. 既然你已經(jīng)離開了大學(xué)，你得找個(gè)工作干。