The last summer I had plans to travel to Beijing, because I was ill and did not go there.

去年夏天本来计划去北京旅行，因为生病而没去成。

youdao

I haven't seen him since the summer before last.

我已有两个夏天没见过他了。

《牛津词典》

Last summer I went to one of the world's most famous historical places, the Forbidden City in Beijng, China.

去年夏天，我去了世界上最著名的历史古迹之一，中国北京的紫禁城。

youdao

I read it the summer before last.

我是前年夏天的时候读的。

麻省理工公开课 - 固态化学导论课程节选

I was part of a huge conference last summer in West Africa on the end of the slave-trade in Ghana, and we had representatives we had people participating in that conference from 15 or 16 different African countries.

我去年夏天曾参加过西非的一个大型集会,纪念是加纳奴隶交易的结束,会议上有来自各国的代表,有15或16个非洲国家的代表,参与的这次大型会议

耶鲁公开课 - 美国内战与重建课程节选

Here, from the Austrian National library where I was last summer photographing and having a wonderful time, is the last page of the Mozart -that Mozart ever wrote here. This is the "Lacrimosa, " and sort of breaking off--and he doesn't finish this particular movement.

这些都来自于奥地利国家图书馆,就是去年夏天我拍照的地方,在那我度过了快乐的时光,这是莫扎特安魂曲的最后一页,他曾写在这上面,这是《落泪之日》,还是半成品,他没来得及完成这个特殊的乐章

耶鲁公开课 - 聆听音乐课程节选

As I walked the streets of Rwanda for the first time last summer, I felt intense shame and regret both personally and on behalf of my country.

FORBES: Invisible Children's Real Achievement: There May Never Be Another Rwanda.

The last time I did something like this was in the summer of 1982 when Fannie Mae five-year notes yielded 15% and everyone expected home mortgage defaults in Texas and California would push this agency into insolvency.

FORBES: The Road Less Traveled

Somewhere between the last warmth of the summer and the damp cool of Halloween, I noticed a change in Marie, and I knew it had something to do with Stan.

NEWYORKER: Something Like Happy