tranquillize
verb [ T ] UK (UK also tranquillise); (US tranquilize) uk/ˈtræŋ.kwɪ.laɪz/ us/ˈtræŋ.kwə.laɪz/
（尤指用药物）使镇静（或昏迷）
to make an animal or person become unconscious or calm, especially with a drug
a tranquillizing drug 安定药
The dogs were tranquillized with a dart gun and taken to a shelter. 这些狗中飞镖麻醉枪昏迷后，被送到了一个动物收容站。
Synonym: sedate