It was the fortieth anniversary of the death of the composer.

那是那个作曲家逝世40周年纪念日。

《柯林斯英汉双解大词典》

John and I celebrate our fortieth anniversary next month.

下个月，John和我将庆祝我们的结婚四十周年纪念日。

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The model represents his love for his wife, Pope explains, and he hopes to give it to her as a fortieth anniversary present in two months.

Pope向他说明，这模型代表了狱长对他妻子的爱，他希望能在两个月后，将它作为他们结婚四十周年的礼物送给她。

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Jim Lovell talked about the current situation at NASA during an event to mark the fortieth anniversary of Apollo Thirteen.

VOA: special.2010.04.28

Rounder Records celebrated its fortieth anniversary with a concert in October at the Grand Ole Opry in Nashville,Tennessee.

VOA: special.2010.04.19

"The Calling" included this song which she performed at the fortieth anniversary concert, "Why Shouldn't We?"

VOA: special.2010.04.19

Organization, in collaboration with the EEAA, Ministry of State for the Environment, of a special day for Biosphere Reserves, in view of celebrating the fortieth anniversary.

UNESCO: Post-Conflict and Post-Disaster Responses

" The primary reason America confronts a terrorism problem today, he continued, is "the brutal oppression of the Palestinians by an Israeli occupation that is about to mark its fortieth anniversary and shows no sign of ending.

WSJ: Gabriel Schoenfeld Says Barack Obama's Pick to Head the National Intelligence Council, Charles 'Chas' Freeman Jr., Is a Controversial Choice

In the fortieth-anniversary edition of Capitalism and Freedom (2002) he stated that he was equally opposed to right-to-work laws and to yellow-dog contracts, which make employment conditional on not belonging to a union.

FORBES: Why Milton Friedman Opposed Right-To-Work