1ADV-GRADED 大概;或许;可能 If you say that something is probably the case, you think that it is likely to be the case, although you are not sure. 大概;或许;可能 [vagueness]
The White House probably won't make this plan public until July.
白宫可能要等到7月份才会公开这个计划。
Van Gogh is probably the best-known painter in the world.
凡·高可能是世界上最知名的画家。
...a new and probably highly dangerous development in the area.
2ADV-GRADED (用于缓和语气)大概,或许,可能 You can use probably when you want to make your opinion sound less forceful or definite, so that you do not offend people. (用于缓和语气)大概,或许,可能 [vagueness]