(about a style of dress, speech, writing, behaviour, etc.) very correct and suitable for official or important occasions（衣着、言语、书写、行为等）适合正式场合的，正规的，庄重的◆Legal firms may have a policy of formal dress.律师事务所可能有要求衣着正式得体的政策。◆You should use a formal style of writing in the report.报告中应使用正式的写作文体。official; following an agreed or official way of doing things正式的；合乎规矩的◆formal legal processes正式的法律程序◆A formal announcement of the appointment is expected today.预计任命将于今天正式宣布。◆No formal agreement has yet been reached.尚未达成正式协议。 () [] used to describe the part of an economy that involves businesses which are officially established or recognized and employment in these businesses正规的（指经济体中正式成立或认可的企业以及在这类企业的就业）◆Only 15% of the labour force are employed in the formal sector.只有 15% 的劳动力在正规部门就业。➡shadow economy ▸formally /ˈfɔːməli; NAmEˈfɔːrm-/
adverb
◆Dress formally for your interview.面试要穿得正式点。◆The accounts were formally approved by the board.账目已由董事会正式批准。