这个墓碑是纪念抗战中逝去的军人。

Zhège mùbēi shì jìniàn kàngzhàn zhōng shìqù de jūnrén.

This tombstone commemorates the soldiers who died in the War of Resistance.

我们将举行一场纪念活动。

Wǒmen jiāng jǔxíng yī chǎng jìniàn huódòng.

We will hold a commemorative event.

这个邮票是为了纪念一位伟大的科学家。

Zhège yóupiào shì wèile jìniàn yī wèi wěidà de kēxuéjiā.

This stamp is issued to commemorate a great scientist.