我的理解是: Professor A: The Aid Industry should limit its effort: 1. to spending on private schools in the poorest areas (, providing medicine for health care,) and 2. to a few key agricultural initiatives.
其中", providing medicine for health care," 是插入成分,修饰"to spending on private schools in the poorest areas",讲的是在这些学校里这资金具体怎么spend
我最初理解成3部分平行,然后想半天不明白,如果3部分平行的话,平行结构就错了: limit its effort 1. to spending on schools 2. providing ... and 3. to a few key agricultural initiatives 这样的平行就不对,因为2前面没有to、而3前面有to 所以就得是前面说的那种思路,两个部分平行
should limit one's efforts to X1 意思就是 previously made efforts on X1, X2, X3, X4, .... but now should ONLY make efforts on X1
所以就是focused more on X1 这其中的逻辑,就是weight 要解释的话,设每个项目(Xi)上面花费的efforts的占总efforts的比重是(wi) 本来w1, w2, w3, w4, ...都是正值 [within (0,1)] 且w1+w2+w3+w4+...=1 但现在说"limit to X1",意思就是 Let w2=w3=w4=...=0 那么当然就只剩下w1=1了 也就是说前后的变化是,w1增大。数学语言转化为英文语言就是"focused more on" OG的解释逻辑性很强的。