Definition: in a polite way Level: C1
宾客们被相互介绍，并正式地握了手。
The guests were introduced and ___formally shook hands.
在团聚期间，家人们以比平常更正式的方式互相问候。
Family members greeted each other more ___formally than usual during the reunion.
在陈述提案之前，他正式地向委员会致辞。
He addressed the committee ___formally before presenting his proposal.
