ad. 命令式地, 官方地, 可信地

[ adv ]
in an authoritative and magisterial manner
<adv.all>
she spoke authoritatively

Authoritative \Au*thor"i*ta*tive\, a.
1. Having, or proceeding from, due authority; entitled to
obedience, credit, or acceptance; determinate; commanding.

The sacred functions of authoritative teaching.
--Barrow.

2. Having an air of authority; positive; dictatorial;
peremptory; as, an authoritative tone.

The mock authoritative manner of the one, and the
insipid mirth of the other. --Swift.
※ -- {Au*thor"i*ta*tive*ly}, adv. --
{Au*thor"i*ta*tive*ness}, n.