單線與雙線限制如果不懂? 該不會這種標線都亂走一通?https://www.google.com.tw/search?q=%E4%B8%80%E8%99%9B%E7%B7%9A+%E4%B8%80%E5%AF%A6%E7%B7%9A&hl=zh-TW&tbm=isch&source=hp&biw=791&bih=382&ei=kM3YY-HGE822oATp0qaoAQ&iflsig=AK50M_UAAAAAY9jboNnIVMtBGagYjKGwnVQSILvZACK_&ved=0ahUKEwjhzp21rvH8AhVNG4gKHWmpCRUQ4dUDCAc&uact=5&oq=%E4%B8%80%E8%99%9B%E7%B7%9A+%E4%B8%80%E5%AF%A6%E7%B7%9A&gs_lcp=CgNpbWcQA1AAWABgAGgAcAB4AIABAIgBAJIBAJgBAKoBC2d3cy13aXotaW1n&sclient=img