rrrrr"> Perhaps this is because of the simple fact that….. 也许，原因很简单，亦即_____________________。 One of the premier causes is that(注意用词) 最重要的原因之一便是______________。本文来源:百考试题网 At the risk of sounding too simplistic, it seems to me that the main propositions can be summarized in one saying. 这个原因可能较简单，不过，我认为可以用一句谚语来概括，________。 We may look into every possible reason, however, foremost reason for …. Is …. 其实有很多原因，不过，造成________的最重要的原因是______________。 It might also be noted that…. 需要注意的是，____________。百考试题论坛 Another reason why …..(凑字数，但不可滥用) is that….(有利于写长句) What is also worth noticing is that…. 值得一提的是___________________。 There is another factor that deserves some words here. 还有另外一个很重要的原因。 A more essential factor why…. Is that ________ 的更为重要的原因是____________。 A further reason why,,,, is that….. ________的更深层次的原因是____________。 In addition..此外，再者 Moving on to wider themes,_______ 展开来说，_________________________。 The second thing that must be taken into consideration is that… 第二个原因也很重要（值得考虑），亦即__________。 Likewise(同样), common sense tells us that… 同样，___________，这是众所周知的。