soberly
adv. 冷静地；严肃地；朴素地
例句
"There's a new development," he said soberly.
“有新的进展，”他严肃地说。
《柯林斯英汉双解大词典》
Tom sat still and contemplated him soberly a moment.
汤姆坐着不动，严肃地打量了他一会儿。
She saw Ellis, soberly dressed in a well-cut dark suit.
她看见了埃利斯，素淡地穿着一套裁剪合体的黑西服。
