猪*重***量*定及重**来*途*研究断1:猪*重***量*定——重**来*途*研究Source Study and Content Determination for Heavy Metals in Pig Manure断2:猪*重***量*定及重**来*途*——研究;荐Study on Content Measurement and Sources of Heavy Metal in Pig Eexcrement,荐供参
A Comparative Study on English and Chinese Idioms Focusing on “Pig” idom应该用复数,因为你研究的应该不是一个成语; focused应该用现在分词focusing; 作为题目,所有主词首字母均应大写; 后面的English与Chinese“猪”没有必要,显得累赘。供参考。又考虑了一下,觉得Focusing on也可改为about。A Comparative Study on English and Chinese Idioms about ‘Pig’