I've lived three summers there, writing, birdwatching, riverwatching.

我在那儿居住了三个夏天：写作、赏鸟、观河。

youdao

For the past three summers, Luca has added gardening to his underwater activities.

在过去的三个夏天里，卢卡在他的水下活动中加入了园艺。

youdao

They won the gold medal. Benjamin Spock worked at a camp for disabled children for three summers during his years at Yale.

VOA: special.2009.03.15

Students take full loads of classes, including two or three summers.

VOA: special.2009.07.23

One of them, Lynn James, lived with the sheep for three summers before discovering the culprit: corn lilies.

FORBES: Magazine Article

And this time it may be a bigger decline than has been experienced in the last three summers.

FORBES: Winter Rally Keeps Stocks Hot, Bears In Hibernation

The economic recovery has stumbled in each of the last three summers, raising fears of a slide back into recession.

FORBES: Forget About The Fed Dialing Back QE3, Buy Bonds