现在完成时是英语语法中一个重要的时态，用于描述过去发生的事情对现在的影响。以下是10个现在完成时例句，带有简短的翻译：
I have studied English for ten years.
我已经学习英语十年了。
She has lived in New York since 2010.
自2010年以来，她一直住在纽约。
We have visited Paris twice.
我们已经两次去过巴黎。
He has never been to Asia.
他从未去过亚洲。
They have just finished their homework.
他们刚刚完成了作业。
She has lost her phone again.
她又把手机弄丢了。
I have already seen that movie.
我已经看过那部电影了。
He has worked at this company for five years.
他已经在这家公司工作了五年。
They have been married for 20 years.
他们已经结婚20年了。
We haven't seen each other for a long time.
我们已经很久没有见面了。
现在完成时可用于描述已完成的动作对现在的影响，或者强调动作完成时间。在使用时要注意正确运用助动词和动词的过去分词。
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