原因
7 \) N _* v) s9 K$ V; i' P# R 1.A number of factors are accountable for this situation.
/ b- P& H& L) g) K( A A number of factors might contribute to (lead to )(account for ) the phenomenon(problem).
4 j( D* {+ }0 K2 B f9 l& g 2. The answer to this problem involves many factors.
1 i4 J( E- t2 h! Z) ^, N 3. The phenomenon mainly stems from the fact that...4 i, O# r8 R6 i7 J& n
4. The factors that contribute to this situation include...- k2 F& O, z# k
5. The change in ...largely results from the fact that...5 c) w* R$ c4 }: T( _
6. We may blame ...,but the real causes are...
# Y( X$ v' q) h 7. Part of the explanations for it is that ...0 H- B, q" }. O O- J- G2 S
One of the most common factors (causes ) is that ...
% z O1 ^ J3 e+ M Another contributing factor (cause ) is ...
7 x& I, J x% A2 P5 u0 c5 E, O& }9 z6 c Perhaps the primary factor is that…6 ~$ D2 t& [ l# K) s2 q
But the fundamental cause is that ... |
发表于 2012-8-14 10:35:42
