probability /ˌprɔbəˈbiliti/ n. 1.［u］概率: probability curve 概率曲线 2.［u］&［c］可能性，可能的情况：There’s little probability to reach/of reaching London tonight. 今晚到伦敦的可能性不大。There’s a probability that the meeting will be postponed. 会议有可能要推迟。There’s a high/strong probability (that) she’ll be here. 她非常可能要到这里来。in all probability很可能，几乎肯定：In all probability we shall be late. 我们几乎肯定要迟到了。
probable /ˈprɔbəbl/ adj. 很可能的，大概的：the probable cost 大概费用/差不多的费用 It is probable that he forgot. 很可能他是忘了。
probably /ˈprɔbəbli/ adv. 很可能，大概，或许：He will probably refuse the offer. 他很可能会拒绝这个建议。 Mary probably told her mother about it. 玛丽很可能把这个告诉了她的母亲。
［辨析］probably, possibly, perhaps和maybe都表示 “可能”。probably语气最强，可能性达80%，如：I will probably go to Beijing this summer.今年夏天我很可能去北京。(几乎肯定) possibly可能性达40%，句中位置同probably。maybe和perhaps表示的可能性仅达10%, maybe一般用于非正式文体， 正式文体中多用perhaps,如：Maybe/Perhaps I will study in America some day. 也许将来有一天我要到美国学习。
