officiallyof•fi•cial•ly /ə'fɪʃəlɪ/

adv

1. 官方地，正式地

• The news is not announced officially. 这条消息尚未正式公布。

2. 据称(但未必属实)

• Officially, he was on a business trip--actually, he was on holiday. 据说他出差了，实际上他在休假。