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an anesthesiologist
anesthesiologist 是可数名词，单数泛指时用 an。
An anesthesiologist monitors your vital signs during surgery.
手术期间麻醉师监测你的生命体征。
麻醉师；麻醉医生
先理解核心含义，再看它在真实句子里的用法。
麻醉师；麻醉医生
a specialist who administers an anesthetic to a patient before treatment
An anesthesiologist monitors your vital signs during surgery.
手术期间麻醉师监测你的生命体征。
通常指临床给患者施行麻醉的医生，而非研究麻醉学的学者。
麻醉学者；[医] 麻醉学家
n. a specialist who administers an anesthetic to a patient before he is treated
Before my surgery, the anesthesiologist explained the risks of the anesthesia.
手术前，麻醉医生向我解释了麻醉的风险。
The anesthesiologist monitored the patient's vital signs throughout the operation.
麻醉医生在整个手术过程中监测病人的生命体征。
She decided to become an anesthesiologist after seeing how calmly they worked in emergencies.
看到麻醉医生在紧急情况下工作得如此镇定后，她决定成为一名麻醉医师。
anesthesiologist 是可数名词，单数泛指时用 an。
An anesthesiologist monitors your vital signs during surgery.
手术期间麻醉师监测你的生命体征。
work as + 职业名词表示“从事……职业”。
She works as an anesthesiologist at the city hospital.
她在市医院做麻醉师。
administer 是正式用词，日常口语中也可说 give。
The anesthesiologist administered an anesthetic to the patient.
麻醉师给患者施用了麻醉剂。
Not this
The anesthesiology will see you before surgery.
Use this
The anesthesiologist will see you before surgery.
anesthesiology 指“麻醉学”（学科），anesthesiologist 指“麻醉医生”（人）。指人时须用 -ist 结尾的名词。
Not this
I need anesthesiologist.
Use this
I need an anesthesiologist.
anesthesiologist 是可数名词单数，前面需要冠词 a/an；因读音以元音音素开头，所以用 an。中文没有冠词，因此容易漏掉，英语中不可省略。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
经专业认证的麻醉师
She is a board-certified anesthesiologist with ten years of experience.
她是一位有十年经验的经专业认证的麻醉师。
主治麻醉师
The attending anesthesiologist reviewed my medical history before the operation.
主治麻醉师在手术前查看了我的病史。
咨询麻醉师
Your doctor may advise you to consult an anesthesiologist.
医生可能会建议你咨询麻醉师。
当麻醉师
After his training, he worked as an anesthesiologist at a large hospital.
培训结束后，他在一家大医院当麻醉师。
麻醉师的评估
The anesthesiologist's assessment is essential before any surgical procedure.
在任何外科手术前，麻醉师的评估都是必不可少的。
Use anesthesiologist naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
an-（安）＋esthesia（感觉）＋-ologist（专家）：让人安睡、失去痛觉的专家，即麻醉师。
语域：formal 常见场景：医疗记录、手术室、医患沟通、医学文献 该词是正式的医疗职业称谓，多用于医疗记录、手术室和医学文献等正式场景，日常口语中相对较少见。
词尾为 -ologist 的词（biologist, geologist, radiologist, pathologist, psychologist）与 anesthesiologist 在重读元音后的部分 /ˈɑːlədʒɪst/（英式 /ˈɒlədʒɪst/）押韵；注意 psychologist 在重读元音前多一个 /k/。注意形近词 anesthesia /ˌænəsˈθiːʒə/ 和 anesthetic /ˌænəsˈθetɪk/ 以 anesthe(s)- 开头，重音和结尾不同，并不押韵。
Dictionary facts from ECDICT, WIKTIONARY.