屈原的生卒年月不详。

The date of birth and death of Qu Yuan is unknown.

《新英汉大辞典》

内容描述：进一步真正说明艺术家和唱片的细节性信息，包括风格、情绪、活跃年代、乐器、生卒时期和地点，以及原籍国家。

Descriptive Content: Deeper details that really illuminate an artist or album including styles, moods, years active, instruments, birth/death date/place, and country of origin.

youdao

最后，研究者总结道：WATCHMAN装置是可替代华法林预防房颤患者发生卒中的有效措施。

The researchers concluded that the WATCHMAN is an effective alternative to warfarin therapy for preventing stroke in patients with atrial fibrillation.

youdao