選裝

选装
xuǎnzhuāng
optional (equipment)

CEDICT

elective installation

Wiktionary

Entry Composition

1 選 xuǎn
  1. to choose
  2. to pick
  3. to select
  4. to elect
2 裝 zhuāng
  1. adornment
  2. to adorn
  3. dress
  4. clothing
  5. costume (of an actor in a play)
  6. to play a role
  7. to pretend
  8. to install
  9. to fix
  10. to wrap (sth in a bag)
  11. to load
  12. to pack

Related entries

可選 kěxuǎn
  1. available
  2. optional
在同一句中不要包含多个可选单词。

Don't include multiple alternative words inside the same sentence.

Source: Tatoeba

自選 zìxuǎn
  1. to choose by oneself
  2. free to choose
  3. optional
  4. self-service