英译汉：老师再解释一遍后同学们才听懂这个句子的意思

Teachers explain it again until after the students understand the meaning of this sentence
英语句型是这样的吧？

The teacher explai agina to make the students understand.

The students understood the meaning of the sentence after the teacher explained it again.

The students didn't understand the sentence's meaning until the teacher explained it again.

The students finally understand the setence's meaning after the teacher's expain again.
The students don't understand the setence's meaning until the teacher expain it once again.

The students understand the words after their teacher explain the question the second time.