(1)重大で落ち着いた方法で
(2)in a grave and sober manner; "he walked soberly toward the altar"
さらに詳しく
(1)厳格に
(2)in a stringent manner; "the laws are stringently enforced"; "stringently controlled"
(2)厳格さで
(3)重々しく、落ち着いた様子で
(4)厳しい態度で
(5)in a stringent manner
