so作為所以講引導(dǎo)什么從句

　　So you're a runner, huh?

　　這么說(shuō)，你是個(gè)跑步愛(ài)好者嘍？

　　So it's a magic potion?

　　這么說(shuō)它是一種魔藥？

　　Sorry I took so long.

　　對(duì)不起，我用了這么長(zhǎng)時(shí)間。