他含糊地答应了一声，显然并不清楚我在说什么。

He ___vaguely nodded, clearly not understanding what I was saying.

我隐约记得昨天见过这个人。

I ___vaguely remember seeing this person yesterday.

我问他周末有什么计划，他只是含糊地应了一声。

When I asked about his weekend plans, he answered ___vaguely.