(1) It is common that
提出論題
(2) Why does such circumstance occurin spite of socialprotects? For one thing
說明現(xiàn)狀
(3) For another
理由一
(4) What is more,since
理由二
(5) It’s natural that
理由三
(6) To solve the problem is not easy at all, but is worth trying.We should do something such as
理由三引起的后果
