1
domestically, + clause
置于句首并加逗号时，表示“就国内事务而言”，通常与“对外”相对。
Domestically, the government is focusing on economic reform.
在国内，政府正专注于经济改革。
在国内；在国内事务上
先理解核心含义，再看它在真实句子里的用法。
在国内；在国内事务上
with respect to a country's internal affairs
Domestically, the government is focusing on economic reform.
在国内，政府正专注于经济改革。
以家庭方式
In a domestic manner.
在主场
At home, playing in one's home ground.
The products are manufactured domestically rather than abroad.
这些产品是在国内生产的，而不是在海外。
The series was a hit domestically, but it failed to win over international audiences.
这部剧在国内大受欢迎，但未能赢得国际观众。
More and more companies choose to recruit workers domestically before looking overseas.
越来越多公司选择先在国内招聘，再考虑海外。
置于句首并加逗号时，表示“就国内事务而言”，通常与“对外”相对。
Domestically, the government is focusing on economic reform.
在国内，政府正专注于经济改革。
此处相当于“在本国国内”，可与“出口国外”形成对比。
These products are manufactured domestically and then exported.
这些产品在国内生产，然后出口。
此用法侧重“在家庭内部”，而非“在本国国内”，需要根据语境区分。
They settled the dispute domestically rather than involving lawyers.
他们在家庭内部解决了纠纷，而不是让律师介入。
Not this
This is a domestically product.
Use this
This is a domestic product.
domestically 是副词，不能放在名词前面作定语；修饰名词 product 表示“国内的”应该用形容词 domestic。把 domestically 改为 domestic 后，才符合英语“形容词+名词”的搭配。
Not this
The phone is sold only in domestically.
Use this
The phone is sold only domestically.
domestically 本身是副词，意思是“在国内”，已经相当于地点状语，不能再用介词 in；“in domestically”不符合英语语法。去掉 in 后，由副词 domestically 直接修饰动词 sold。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
国内生产的
The store mainly sells domestically produced food.
这家商店主要销售国内生产的食品。
在国内销售
Most of their products are sold domestically.
他们的大部分产品在国内销售。
国内拥有的
The company is domestically owned and independent.
这家公司是国内拥有的、独立的。
专注于国内市场的
The airline is domestically focused and offers few international flights.
这家航空公司专注于国内市场，国际航班很少。
在国内竞争
The small business struggles to compete domestically.
这家小企业很难在国内竞争。
在国内运营
The company has chosen to operate domestically for now.
该公司目前选择在国内运营。
我们不会与恐怖分子谈判。我们不会受任何人在任何地方的支配，无论是在国内还是国外。
In Air Force One, the president vows that the United States will not be dictated to domestically or internationally.
在《空军一号》中，总统发誓美国不会在国内或国外被左右。
Use domestically naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：在国外叫 internationally，在国内叫 domestically——domestic 是‘家里的’，扩大到一个国家就是‘国内的’。
语域：formal 常见场景：International trade and economic policy、Government and domestic political affairs、Formal descriptions of home or family life domestically 是副词，通常用于书面或较正式的场合，如新闻报道、政策讨论等；表示“在国内”或“在家庭方面”。日常口语中较少单独使用，具体含义需根据搭配判断，例如 domestically produced 指“本国生产的”。
真正押韵的是 majestically（重读元音 /ɛ/ 及后续 /stɪkli/ 与 domestically 相同）。domestic 是去掉 -ally 后缀的拼写相近词，读音不同；drastically、fantastically 虽也以 -ically 结尾，但重读元音不同，并不押韵。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.