(1)(指结果)因此，所以(with the result or consequence that)：She asked me to go，～I went. 她要我去，所以我就去了。The play began at eight，～they must dine at seven. 演出8点开始，所以他们必须7点开饭。

(2)(表示目的)为了，以便(with the purpose that)(infml)：Check carefully，～(that) any mistakes will be caught. 仔细检查，以便能发现错误。He spoke loudly～(that) everybody would hear. 他提高了嗓门，好让大家都能听见。

(3)(用以引出下文)(used to introduce the next part of the story)：S～，you don't like the cake I baked. 这么说你是不喜欢吃我烤的饼啦。S～that's how matters stand. 原来事态就是如此。

so what? 那有什么了不起，那又怎么样(infml)：“He hates you.” “S～what?”“他恨你。” “那又怎么样呢?”