She danced with a grace and lightness that were breathtaking.是什么意思？

She danced with a grace and lightness that were breathtaking.

她的舞跳得优雅轻盈，令人惊叹。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

danced

v. 跳舞( dance的过去式和过去分词 )，手舞足蹈，摇晃，跳跃；

例句
She skipped and danced along...
她蹦蹦跳跳地往前走着。

with

prep. 和，跟，随着，关于，和…一致；

例句
A waiter entered with a tray...
侍者端着托盘进来了。

grace

n. 恩泽，优雅，慈悲，魅力；v. 使优美，惠赐；

例句
In China Grace Thompson observed the great variety of loads that were carried by 'slim, erect but muscular Amazons'.
在中国，格雷丝·汤普森看见“苗条、挺直而强健的女人们”携带着各种物品。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

lightness

n. 轻，轻快，轻率，明亮；

例句
Another three - dimensional coordinate scale for. describing color utilizes the attributes of lightness - darkness, yellowness - blueness, and redness - greenness.
另一种描述色泽的三维坐标系统利用了明一暗 、 黄一蓝 、 红一绿三种属性.

that

det. 那个，那；pron. 那个，那；conj. 多么，如此…以至，用于某些动词、形容词和名词后，引出各种从句；adv. 不那么，那样；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

were

be的过去时复数和第二人称单数形式，有时代替 was,用于条件从句、动词 wish 之后等；

例句
Shops, houses, and vehicles were set ablaze.
店铺、房子和车辆全都陷于火海。

breathtaking

adj. 非常激动人心的，惊人的，惊险的，使人透不过气来的；

例句
If there's good skiing, breathtaking scenery and you don't need to catch a plane, all the better!
如果有好的滑雪场、令人叹为观止的美景，又不用赶飞机，那就再好不过了。