劍橋詞典the form of the verb used for actions or events that have been completed or have happened in a period of time up to now 現(xiàn)在完成時(shí) The sentences "She has talked to her doctor about the problem " and "I have never been to Australia " are all in the present perfect . 句子 She has broken her leg 和 I have never been to Australia 用的都是現(xiàn)在完成時(shí)。 例句 'I have seen it' is an example of the present perfect .The sentence 'I have told him' is in the present perfect tense . 返回 the present perfect