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公式， こうしき
1. official, formal
2. formula (e.g. mathematical)
3. official (social media) account (of a company, organization, etc.)
tbd
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肩書き， 肩書， かたがき
1. title (e.g. Doctor, Professor, Lord), job title, position (in a company), degree, status, rank
头衔（如医生、教授、勋爵），职务名称，职位（在公司内），学位，身份，等级
は
1. indicates sentence topic
2. indicates contrast with another option (stated or unstated)
3. adds emphasis
指示句子的主题；表示与另一选项（无论是否明确提及）形成对比；表示强调
