英语翻译用来形容两人之间的默契.u dont need to say much more,she has underst

你的翻译是正确是的,用来形容两人之间的默契,说明这是她的一个习惯,
如果直接翻译你的句子 就要用：现在完成时
当然翻译就多种多样了,
She has understood you totally when you just say a few words
但当我说：
she can understand you without many words.
she can understand you by just a few words.
这是无需完成时,而且能更好表现她具备这个特质.我更喜欢最后一句,更简练.更地道.

She had totally understood you before you finished your talking.

我觉得可以用过去完成时,表现出一个先后的关系

现在完成时.
She has understood totally while you hasn't said much more yet

你好，可翻译为：No need for you to say anything,she`s（she has) already completely understood that（已经完全明白了）.满意速速采纳，谢谢合作！