七十七的英文：
seventy seven

参考例句：

The hungarian stop is the thirteenth race in F1 World Championship. The 77-lap event will take place on Sunday.
匈牙利站比赛是F1世界冠军赛的第十三站赛事，将在周日登场，全程七十七圈。

seventy是什么意思：
n. 七十，七十个

Seventy thousand people will pack the stadium.
将有7万人挤满整个体育场。

For the use of seventy and seventieth see the examples at five and fifth
关於seventy和seventieth的用法见five和fifth词条中的示例

The seventies proved recycling's practicality and worth.
七十年代证实了回收利用的可行性和价值。

Seventy of the 350 naturally occurring isotopes are radioactive.
自然界有350种天然同位素，其中70种有放射性。

When you get to seventy you are not so active as you were at fifty
当你到70岁时就不会像50岁时那样有活力。

seven是什么意思：
num. 七
n. 七，七个

Seven is my lucky number.
七是我的幸运数字.

Please awaken me at seven.
请于7点唤醒我。

It has grown in the past seven years.
在过去七年中，它已经增长了。

There are seven of us, inclusive of the servants.
抱括仆人在内，我们一共有7人。

These brothers are always at sixes and sevens.
他们兄弟总是不和。