rather

1. 而非；胜于；而不是
You use rather than when you are contrasting two things or situations. Rather than introduces the thing or situation that is not true or that you do not want.

e.g. The problem was psychological rather than physiological...
问题是心理方面的而不是生理方面的。
e.g. Sedge is similar in appearance to grass but has a solid rather than a hollow stem...
莎草看上去和普通的草没什么两样，但其草茎是实芯的而不是空芯的。

2. 而是；更确切地说；还不如说；相反
You use rather when you are correcting something that you have just said, especially when you are describing a particular situation after saying what it is not.

e.g. Twenty million years ago, Idaho was not the arid place it is now. Rather, it was warm and damp, populated by dense primordial forest...
2,000万年前，爱达荷州并不像现在这样干旱。相反，那时的爱达荷州温暖潮湿，有大片的原始森林。
e.g. But there must be no talk of final victory; rather, the long, hard slog to a solution...
但是这还谈不上是最后的胜利；而是长期、艰难地寻找解决方法的过程。

3. 宁愿/不愿；宁可/宁可不
If you say that you would rather do something or you'd rather do it, you mean that you would prefer to do it. If you say that you would rather not do something, you mean that you do not want to do it.

rather的解释

e.g. If it's all the same to you, I'd rather work at home...
如果对你来说没什么差别，我宁愿在家中工作。
e.g. Which programme would you rather appear on?...
你更愿意在哪个节目中露面？

4. 有些;颇为;相当
You use rather to indicate that something is true to a fairly great extent, especially when you are talking about something unpleasant or undesirable.

rather

e.g. I grew up in rather unusual circumstances...
我在非同寻常的环境下长大。
e.g. It had made some rather bad mistakes which I thought should be corrected...
它犯了一些相当严重的错误，我觉得应该加以纠正。

5. （放在动词前）更…，宁愿…
You use rather before verbs that introduce your thoughts and feelings, in order to express your opinion politely, especially when a different opinion has been expressed.

rather

e.g. I rather think he was telling the truth...
我倒觉得他讲的是真话。
e.g. I rather like the decorative effect.
我倒很喜欢装饰的效果。

6. （表示同意或接受）当然，的确
People sometimes say rather to express agreement or acceptance.

e.g. 'Well, he did have a sort of family connection with it, didn't he.' — 'Oh yes. Rather.'
“那么，他的确和它有些家族渊源，是不是？”——“噢，是的，的确如此。”

1. 相当：眼前的选择将他整个人都翻转过来,他无法决定自己要往哪里去,而这实在是太不寻常了--不,相当(rather)不寻常--会觉得如此的茫然. 这突然让他想起了自己和云妮晚上看书时所念到的一些字. 他一方面喜欢看书,

2. 恰恰相反;相当：secure 获得,得到;a. 安全的 | rather 恰恰相反;相当 | knowledge 知道;知识

3. 宁愿：rather too 稍微 | rather 宁愿 | ratheripe 早熟的

4. 有些,宁可：rarely 很少 | rather 有些,宁可 | ratio 比率,比