He spent seventeen years as an airline pilot.
他当了17年的航空公司飞行员。
The collection has been built up over the last seventeen years.
这些收藏是在过去的17年里逐渐收集的。
I think you're seventeen years old.
我猜你有十七岁了。
We are seventeen years old, but it's just last year.
我们的十七岁，好像不过才是去年的事。
He began to learn English letters when he was seventeen years old.
他在十七岁时开始学习英文字母。
By next summer, I will have been teaching here for seventeen years.
到明年夏天我在这里教学就有16年了。
I left school when I was seventeen years old, because my father was not rich.
因为父亲并不富有，我在十七岁时就辍学了。
I am Mark Huang, a second-year senior high school student. I am seventeen years old.
我是高中二年级的洪马克，年龄十七岁。
I am Mark Huang, a second-year senior high school student. I am seventeen years old.
我是高中二年级的洪马克，年龄十七岁。
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