The runway had to be lengthened.是什么意思？

The runway had to be lengthened.

跑道需要加长。

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。

runway

n. 跑道，河床，滑道；

例句
The new runway is a billion-dollar boondoggle.
新的机场跑道耗资10亿美元，却没什么大用处。

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。

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。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

lengthened

v. （时间或空间）延长，伸长( lengthen的过去式和过去分词 )；

例句
She began to walk faster, but he lengthened his stride to keep up with her...
她开始加快步子，但他加大了步幅跟着她。