yet

1.（用于否定句和疑问句，谈论尚未发生但可能发生的事）used in negative sentences and questions to talk about sth that has not happened but that you expect to happen

2.现在；即刻；马上now; as soon as this

3.从现在起直至某一时间；还from now until the period of time mentioned has passed

4.could, might, may, etc. do sth ~（表示将来可能发生，尽管现在似乎没有可能）早晚，总有一天used to say that sth could, might, etc. happen in the future, even though it seems unlikely

5.the best, longest, etc. sth ~ (done)迄今为止，到当时为止（最好或最长等的）the best, longest, etc. thing of its kind made, produced, written, etc. until now/then

6.~ another/more.~ again（强调次数或数量的增加）used to emphasize an increase in number or amount or the number of times sth happens

7.~ worse, more importantly, etc.（强调程度的增加）更used to emphasize an increase in the degree of sth (= how bad, important, etc. it is)

as yet

直到现在；直至过去某时until now or until a particular time in the past

1.但是；然而despite what has just been said

1.虽...可是,但是

2.还(不...),还(没有...),暂时还

3.还,现在还是,依然,仍旧;到目前为止

4.又,再,更,此外还

5.现在,已经

6.何况(不是...);连,甚至于

7.回头,早晚,不久

8.更

1.虽然...但是,可是

1.used for talking or asking about something that has not happened or is not true at a particular time but will probably happen or be true in the future

2.used for saying that something cannot or should not be done now, but will be done at a time in the future

3.used for saying that something could be true or could still happen in the future

4.used for saying that someone or something is the best, worst, biggest, etc. of their kind up to now

5.used after words referring to a period of time for saying how much time will pass before something happens or finishes

6.used for introducing a word or idea that is surprising after what has just been mentioned

7.used for emphasizing that someone or something is even bigger, better, worse, more, etc. than someone or something else