Collins Chinese Dictionary Plus (3rd edition), 2011:
首尾 shǒuwěi 名
1
(=开始和结尾) the beginning and the end
- 这(這)部电(電)影首尾都很出人意料。 Zhè bù diànyǐng shǒuwěi dōu hěn chū rén yìliào. This film has an unexpected beginning and end.
2
(=从头至尾)
- 整个(個)项(項)目，首尾经(經)过(過)了4年。 Zhěngge xiàngmù，shǒuwěi jīngguòle sì nián. From start to finish, the whole project took four years.