(1)(指結(jié)果)因此，所以(with the result or consequence that)：She asked me to go，～I(xiàn) went. 她要我去，所以我就去了。The play began at eight，～they must dine at seven. 演出8點(diǎn)開(kāi)始，所以他們必須7點(diǎn)開(kāi)飯。
(2)(表示目的)為了，以便(with the purpose that)(infml)：Check carefully，～(that) any mistakes will be caught. 仔細(xì)檢查，以便能發(fā)現(xiàn)錯(cuò)誤。He spoke loudly～(that) everybody would hear. 他提高了嗓門(mén)，好讓大家都能聽(tīng)見(jiàn)。
(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. 這么說(shuō)你是不喜歡吃我烤的餅啦。S～that's how matters stand. 原來(lái)事態(tài)就是如此。
so what? 那有什么了不起，那又怎么樣(infml)：“He hates you.” “S～what?”“他恨你?！?“那又怎么樣呢?”