1
apply a topical anesthetic to [body part]
The dentist applied a topical anesthetic to the gum before the injection.
牙医在注射前将表面麻醉药涂抹在牙龈上。
表面麻醉药，局部麻醉剂
先理解核心含义，再看它在真实句子里的用法。
表面麻醉药，局部麻醉剂
a medication applied to a specific area of the body to numb it without causing loss of consciousness
The dentist applied a topical anesthetic to the gum before the injection.
牙医在注射前将表面麻醉药涂抹在牙龈上。
The dentist applied a topical anesthetic to numb my gum before the injection.
牙医在注射前使用表面麻醉药使我的牙龈麻木。
You can buy a topical anesthetic cream at the pharmacy for minor skin irritations.
你可以在药房购买一种表面麻醉药膏用于轻微的皮肤刺激。
The doctor recommended a topical anesthetic to reduce the pain from the rash.
医生推荐了一种表面麻醉药来减轻皮疹的疼痛。
The dentist applied a topical anesthetic to the gum before the injection.
牙医在注射前将表面麻醉药涂抹在牙龈上。
通常用于描述目的或适应症。
You can use a topical anesthetic for minor skin irritations.
你可以使用表面麻醉剂来缓解轻微的皮肤刺激。
用于描述麻醉剂的特性。
Select a topical anesthetic that numbs the area quickly.
选择一种能快速麻醉该区域的表面麻醉药。
Not this
The dentist used an anesthetic topical on my gums.
Use this
The dentist used a topical anesthetic on my gums.
英语中形容词通常放在名词前，但中文修饰语可前置，导致学习者可能按中文语序把'anesthetic'放在' topical'前。正确语序是形容词'topical'放在名词'anesthetic'前。
Not this
The doctor applied a local anesthetic to the skin before the injection.
Use this
The doctor applied a topical anesthetic to the skin before the injection.
'local anesthetic'指局部麻醉（如神经阻滞），而'topical anesthetic'指表面涂抹的麻醉药。中文常统称'局部麻醉'，但英语中两者不同，需根据用法选择正确词汇。
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通常用于单数形式，指一种药物或制剂。
Dictionary facts from ECDICT.