The porter, however, could not understand me.
看门人却听不懂我的话。
I could not understand why she felt compelled to behave so rudely to a friend.
我不能理解为什么她非要如此粗鲁地对待一位朋友。
她无法理解。
The ordinary people could not understand it.
普通人无法理解。
Someone could not understand them and become very sick or even die.
有些人无法理解他们，并且病情加重甚至死亡。
She could not understand how such a surly man could make such a coaxing sound.
她不明白这样一个乖戾的人怎么能发出这样迷人的声音。
The man again shook his head, for he could not understand or speak his language.
这个人又摇了摇头，因为他不懂也不会说他的语言。
There was a pause now, a sort of waiting silence which Tom could not understand.
一阵沉默，这是一种等待的沉默，是汤姆无法理解的。
They could not understand this, and a cold fear fell upon all the three of them.
他们不明白这是怎么回事，他们三个人都感到一阵寒心的恐惧。
That she could not understand.
这一点她无法理解。
I could not understand what he said.
我不明白他说的是什么。
I could not understand, and was vexed.
我无法理解，而且懊恼异常。
I could not understand her capricious behavior.
我无法理解她那反复无常的态度。
He spoke slowly, but I could not understand him.
他说很慢，但我还是听不懂他的话。
He spoke so fast that we could not understand him.
他说得如此快，以致我们听不懂他的话。
He wanted something, but I could not understand him.
他需要一些东西，但是我不能领会。
Then he spoke slowly, but I could not understand him.
于是他说得慢了，可我还是听不懂。
Then he spoke slowly， but I could not understand him.
于是他说得慢了，可我还是听不懂。
I could not understand what the teacher said in class.
我无法理解老师在课堂上讲的内容。
She could not understand his failure to attend the meeting.
她不理解他为什么没参加会议。
He was dazed and dizzy. He could not understand what was happening.
他快乐得昏昏沉沉，晕晕忽忽，不明白发生了什么事。
Although I could not understand everything the characters said.
尽管我并不都能理解角色们说的话。
I could not understand a single sentence without an English dictionary.
我那时离开字典就看不懂一个英文句子。
I could not understand the lecture on the computer given by Mr. Smith.
我听不懂史密斯先生作的那个关于计算机的讲座。
They could not understand why he spent all his time in the laboratory.
他们不理解为什么他要把全部时间用在实验室里。
No matter how hard he trided, he could not understand higher mathematics.
不论他如何努力，他就是无法弄懂高等数学。
She could not understand the animosity felt towards Bill by her older brother.
她不能理解她哥哥对比尔何以深恶痛绝。
Too begin with, she spoke too quickly, and l could not understand every word.
一开始，她说得太快了，我不能听懂所有的话。 。
No matter how hard he tried, he just could not understand higher mathematics.
不论他如何努力，他就是无法弄懂高等数学。
No matter how hard he tried, he just could not understand higher mathematics.
不论他如何努力，他就是无法弄懂高等数学。
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