/səʊ ||; so/adv1 used to emphasize an adjective or adverb, especially when this produces a particular result （用于形容词或副词前以加强语气，尤指造成某种结果的）: She's so ill (that) she can't get out of bed. 她病得下不了床。He was driving so fast that he couldn't stop. 他开车开得太快，以至于停不下来。You've been so kind. How can I thank you? 你真是太好了，我怎样才能谢你？ ☞Look at the note at such. 参看such的注释。
2 used in negative sentences for comparing people or things （用于否定句以比较人或物）: She's not so clever as we thought. 她不如我们想象的那么聪明。
3 used in place of something that has been said already, to avoid repeating it （用于替代前述事物，以避免重复）: Are you coming by plane? If so, (= if you are coming by plane) I can meet you at the airport. 你搭飞机来吗？如果是这样的话，我可以到机场去接你。‘I failed, didn't I?’ ‘I'm afraid so.’ “我失败了，是吗？”“恐怕是的。”
In formal language, you can refer to actions that somebody has mentioned using do with so He asked me to write to him and I did so (= I wrote to him). 在正式用语中，可以用do + so来代替某人提过的动作﹕He asked me to write to him and I did so.他叫我写信给他，我照办了。 4 (not with verbs in the negative 不与动词的否定形式连用) also, too 也: He's a teacher and so is his wife. 他是个教师，他太太也是。‘I've been to New York.’ ‘ So have I.’ “我去过纽约。”“我也去过。”I like singing and so does Helen. 我喜欢唱歌，海伦也喜欢。 ☞For negative sentences, look at neither. 有关否定句，参看neither。
5 used to show that you agree that sth is true, especially when you are surprised （用于表示同意，尤指出乎意料的事）: ‘It's getting late.’ ‘So it is. We'd better go.’ “时间晚了。”“真的啊。我们走吧。”
6 (formal 正式) (used when you are showing sb sth) in this way; like this （用于指示）这样，这么: It was a black insect, about so big (= using your hands to show the size). 那是一种黑色的昆虫，大约有这么大（用手比画大小）。Fold the paper in two diagonally, like so. 把这纸对角迭两折，像这样。
and so on (and so forth) used at the end of a list to show that it continues in the same way （用于表示列举未尽）诸如此类，等等:
They sell pens, pencils, paper and so on. 他们卖墨水笔、铅笔、纸张等。 I told you so used to tell sb that he/she should have listened to your advice （用于告诉对方早应该听自己的忠告）我早对你说过:
‘I missed the bus.’ ‘I told you so. I said you needed to leave earlier.’ “我错过了那班车。”“我早对你说过。我说过你须要早一点出发。” it (just) so happens (used to introduce a surprising fact) by chance （引出出人意表之事）碰巧，正好:
It just so happened that we were going the same way, so he gave me a lift. 我们恰好同路，所以他就载我一程。 just so→
JUST¹
or so (used to show that a number, time, etc is not exact) approximately; about （用于表示不确切的数目、时间等）…左右，大概:
A hundred or so people came to the meeting. 约有一百人出席了会议。 so as to do sth with the intention of doing sth; in order to do sth 为了做某事；以便做某事
so much for used for saying that sth was not helpful or successful （用于表示某事物无用或不成功）:
So much for that diet! I didn't lose any weight at all. 那减肥餐不过如此！我的体重一点也没有减轻。 that is so(
formal 正式) that is true 对的；不错