elective

• 指可由患者选择而非紧急必需的医疗程序或治疗；泛指可选择的、非强制的。

Describes a medical procedure or treatment that is chosen by the patient rather than urgently required.

1. Optional courseB1formal

   A subject or course that a student can choose to take, not required.

   选修课

   • She chose an elective in art history this semester.
   • Students must take three elective courses to graduate.
   • The elective on creative writing was very popular.

   同义词discretionarynonobligatoryoptionalvoluntary

   反义词compulsorymandatoryobligatoryrequired

2. Related to electionsB2formal

   Relating to or involving voting or elections.

   选举的

   • The elective process determines the next president.
   • Elective offices are filled through public voting.
   • The committee discussed elective reforms for the system.

   同义词electoral

3. Optional medical procedureB2formalmedical

   A medical treatment or surgery that is chosen by the patient, not urgent.

   择期医疗程序

   • She decided to have elective cosmetic surgery.
   • Elective procedures are often scheduled in advance.
   • The hospital postponed all elective surgeries due to the emergency.

   同义词discretionaryoptionalplannedscheduledvoluntary

   反义词emergencymandatoryrequiredurgent

• 指学生可以根据自己的意愿选择修读的课程或科目，而非必修课程。

A noun referring to a course or subject that a student can choose to take as part of a curriculum, rather than one that is required.

1. Optional courseB2formal

   A course or subject that a student can choose to take, as opposed to a required one.

   选修课

   • She decided to take an elective in art history.
   • The university offers many electives in foreign languages.
   • He chose a photography elective for his final semester.

   同义词choiceelective courseoption

   反义词required courserequirement