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- It has been known for a long time that the earth moves around the run. 长时间以来,人们就知道地球是绕着太阳转的。
- I don't know him well though I've known him for a long time. 我对他并不了解，虽然我认识他已经很长时间了。
- They've been dating for a long time. 他们一直频频约会。
- Have you known Sandy for a long time? 你已经认识桑迪很长时间了吗?
- I haven't set eyes on her for a long time. 从那以后，我再也没见过她。
- He had known for the scheme for a long time,but only opted in at the last minute. 这项计划他早已知道了，但直到最后才决定加入。
- For a long time his fate hung in the balance. 他的命运很久未能确定。
- Chemists had known for a long time that pure carbon normally came in two common molecules forms: graphite and diamond. 长期以来,化学家都知道碳以两种常见的形态存在:石墨及金刚石。
- She has been ailing for a long time. 她已病了好久了。
- Some elements, which have been known for a long time, have symbols based on their Latin names! 有些很早就为大家所知的元素,其符号来自它的拉丁文!
- I've known for a long time that you were proud and headstrong, but I thought time would change you. 很久以来我就知道你骄傲自负，刚愎自用，不过我以为时间会使你改变。
- It has been known for a long time that there is a first relationship between the heart and the liver. 长期以来,大家知道心脏与肝脏的关系是最主要的。
- It has been known for a long time that there is a strong relationship between the heart and the liver. 长期以来,大家知道心脏与肝脏的关系紧密。
- I have known him for a long time. 我认识他很久了。
- It may describe a person who has been known for a long time but is not necessarily old in years. 也可用以指早已认识的人， 但不一定年老。
- Hello, Carol. How are you? I haven't seen you for a long time. 嗨，卡罗尔，你好吗？好久不见了。
- He had known for the scheme for a long time, but only opted in at the last minute. 这项计划他早已知道了，但直到最后1分钟才决定加入。
- This has been known for a long time, from radiocarbon dating from charcoal by paleontologists," he says. 这个经古生物学家采用放射性碳定年法测定后的结论早就被众人所知了。”
- They have known for a long time, if they are willing to testify, that according to the strictest party of our religion I have lived as a Pharisee. 他们若肯作见证就晓得，我从起初是按著我们教中最严紧的教门作了法利赛人。
- I have had no news from him for a long time. 我好久不知道他的消息了。
