elective

adj.

选任的；有选举权的；（课程）选修的；（可选择的）可选择的

n.

选修课程；

复数：electives

elective course选修课

an elective course选修科目

elective system n. 选课制度，选修制

elective subjects 选修科目（elective subject的复数）

elective surgery选择性外科手术；非急需施行的手术

1. He had never held elective office.
   他从未担任过任何选举产生的职务。
2. Elective surgery must be carefully investigated.
   选择性手术必须小心评估研究。

1. She is taking French as an elective next year.
   她明年选修法语。
2. Besides the required courses, I'm taking an elective in computer.
   除了必修课外，我正在选修电脑课。

Elective stenting of the extracranial carotid arteries.
Low Diagnostic Yield of Elective Coronary Angiography
Low diagnostic yield of elective coronary angiography.
Low Diagnostic Yield of Elective Coronary Angiography — NEJM
Coronary-artery revascularization before elective major vascular surgery.
Elective transfer of one embryo results in an acceptable pregnancy rate and eliminates the risk of multiple birth.
Infertility: Avoidance of triplet pregnancies by elective transfer of two good quality embryos
Guidelines for perioperative care in elective colonic surgery: Enhanced Recovery After Surgery (ERAS?) Society recommendations.
A randomized trial of immediate versus delayed elective angioplasty after intravenous tissue plasminogen activator in acute myocardi...
Prevalence of clopidogrel non-responders among patients with stable angina pectoris scheduled for elective coronary stent placement.