按地区；以地区为单位
先理解核心含义，再看它在真实句子里的用法。
按地区；以地区为单位；按地区；以地区为单位
in terms of geographical areas; according to region
The survey results were analyzed by region.
调查结果按地区进行了分析。
按地区；以地区为单位
in terms of geographical areas; according to region
Use by region naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Dictionary facts from AI_SUPPLEMENT.