doubtfully是什么意思？

If it is doubtful that something will happen, it seems unlikely to happen or you are uncertain whether it will happen.

If you are doubtful about something, you feel unsure or uncertain about it.

If you say that something is of doubtful quality or value, you mean that it is of low quality or value.

If a sports player is doubtful for a match or event, he or she seems unlikely to play, usually because of injury.