解析英语句子,
问题描述：
解析英语句子,
india,for example
has promised to cut
emissions by at least
twenty percent from two
thousand five levels by
two thousand twenty.尤其是里面的两个by
答
举个例子来说,印度已经承诺在2020之前要使排放物水平降低至少2005年的20%.for examaple,插入语,不管has promised...谓语cut...by,减少多少,by后是数值twenty percent from two thousand （and)five levels修饰20%,相...