present perfect tense:现在完成时。
双语例句:
1.There is no exactly equivalent French tense to the present perfect tense in English.
法语里没有和英语中的现在完成时完全对应的时态。
2.Explain and illustrate the main use of the present perfect tense.
解释并举例说明现在完成时态的用法。
3.Explaining some topic already obtained uses present perfect tense.
说明某个课题现在已经取得的成果,适宜采用现在完成时。
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