The instructress had called them to attention again.'是什么意思？

The instructress had called them to attention again.'

女教练又叫他们立正啦.

the

art. 指已提到的人（物），指说话人与听者已知的人（物），用于独一无二的事物前，与形容词最高级和序数词连用；

例句
He did have a real knowledge of the country...
他对该国的确知之甚多。

instructress

n. 女教师，女指

例句
The instructress had called them to attention again.'
女教练又叫他们立正啦.

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

called

v. 叫( call的过去式和过去分词 )，通电话，认为，估计；

例句
He has also called for an acceleration of political reforms.
他同时呼吁加快政治改革的步伐。

them

pron. 他们，她们，它们；

例句
I take care of them to the best of my abilities...
我尽我所能地照顾他们。

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

attention

n. 注意，注意力，照料，关怀，殷勤；int. [口令]立正；

例句
Every bank pays close attention to the speed and accuracy of its staff.
每家银行都非常关注雇员的工作速度和无差错率。

again

adv. 再一次，再说，此外，不过；

例句
It's easier to take a taxi. But then again you can't always get one...
打出租车要容易些，但也并不总是能打到的。