uncertainly
adv. 不确定地；没把握地；犹豫地
例句
They smiled uncertainly at one another.
他们犹豫地相视而笑。
《牛津词典》
He entered the hallway and stood uncertainly.
他走进门厅，站在那儿不知道做什么好。
《柯林斯英汉双解大词典》
"Hello," he said uncertainly.
“你好，”他迟疑地说。
