她的反对意见与心理因果性的问题密切相关。

Her objections are ___germane to the issue of mental causation.

她的评论与会议主题密切相关。

Her comments were ___germane to the topic of the meeting.

你的问题虽然有趣，但与会议主题无关。

Your question is interesting, but it's not ___germane to the meeting topic.