If you write or speak vaguely, you do not explain or express things clearly.
'I'm not sure,' Liz said vaguely.
“我不能肯定,” 莉兹含糊地说。
If you vaguely remember something, you cannot remember it clearly.
Judith could vaguely remember her mother lying on the sofa.
朱迪斯隐约记得她母亲当时躺在沙发上的情景。
Vaguely means to some degree but not to a very large degree.
The voice on the line was vaguely familiar, but Crook couldn't place it at first.
电话中的声音有点儿熟悉,但克鲁克一时却听不出是谁。