shave (sth) with a razor
with a razor 说明刮剃时使用的工具,主语通常是自己刮毛的人。
He shaves with a razor every morning.
他每天早上用剃须刀刮胡子。
剃须刀；刮胡刀；剃刀
razors — plural of razor
奥卡姆剃刀；剃刀原则；野猪的獠牙；形状特殊的锋利刀具,用于刮除面部或身体其他部位的毛发。；剃须用的刃具；任何用于剃毛的工具或器械。
a tool with a sharp blade used for shaving hair
形状特殊的锋利刀具,用于刮除面部或身体其他部位的毛发。
A keen-edged knife of peculiar shape, used in shaving the hair from the face or other parts of the body.
剃须用的刃具
edge tool used in shaving
任何用于剃毛的工具或器械。
Any tool or instrument designed for shaving.
野猪的锋利獠牙。
The sharp tusk of a wild boar.
一种概念工具,用于剔除对现象的牵强解释。
A conceptual device that allows one to shave away unlikely explanations for a phenomenon.
He cut himself while shaving because his razor was too old.
他刮胡子时因为剃刀太旧而割伤了自己。
用法提示：razor 为可数名词,此处单数,指刮胡子用的剃刀。
I need to buy new razors before my trip.
我需要在旅行前买几把新剃须刀。
用法提示：razors 是 razor 的复数形式,作名词指多把剃须刀。
She prefers using a safety razor to an electric one.
她更喜欢用安全剃刀而不是电动剃刀。
用法提示：razor 作名词,与 safety 搭配组成安全剃刀。
with a razor 说明刮剃时使用的工具,主语通常是自己刮毛的人。
He shaves with a razor every morning.
他每天早上用剃须刀刮胡子。
for 加动名词用来说明剃须刀的用途,sth 指要刮掉毛发的部位。
She bought a razor for shaving her legs.
她买了一把用来刮腿毛的剃须刀。
use a razor to do sth 强调把剃须刀当作工具来完成某个动作。
He used a razor to trim his beard.
他用剃须刀修剪胡须。
grammar · medium
易错句子I need razor to shave every morning.
正确表达I need a razor to shave every morning.
razor 是可数名词，单数形式前必须加限定词（a/the/my 等）。汉语“我需要剃须刀”可以不带数量词，但英语可数名词单数不能“裸奔”，所以要说 a razor；若泛指多把可用复数 razors。
grammar · medium
易错句子He shaved his beard by a razor.
正确表达He shaved his beard with a razor.
表示“用某种工具”时英语用介词 with，不用 by。by 通常表示手段、方式或施动者（如 by hand、written by him），而具体的工具要用 with a razor。
grammar · medium
易错句子My razor is blunt, so I need to change the razor.
正确表达My razor blade is blunt, so I need to change the blade.
razor 指整把剃刀（刀具本身），刀片是 razor blade 或 blade。汉语“换刀片”若直译成 change the razor，会被理解为换掉整把剃刀，指刀片时必须说 razor blade/blade。
电动剃须刀
He shaves with an electric razor every morning.
他每天早上用电动剃须刀刮脸。
剃须刀片
Be careful not to cut yourself on the razor blade.
小心别被剃须刀片割伤。
一次性剃须刀
I bought a pack of disposable razors for the trip.
我为这次旅行买了一包一次性剃须刀。
安全剃须刀
He prefers a safety razor to a modern cartridge razor.
比起现代的刀头剃须刀，他更喜欢安全剃须刀。
直剃刀（老式折刀式剃刀）
The barber shaved him with a straight razor.
理发师用直剃刀给他刮了脸。
Choose the next layer that will help you use razors with more confidence.
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奥卡姆剃刀（原则）
By Occam's razor, the simplest explanation is usually the best.
按照奥卡姆剃刀原则，最简单的解释通常是最好的。