A sentinel 对比 Guard

在英语中何时使用每一个，包含含义、语域和例句。

A sentinel

10000 以上（较少见）

Guard

前 1000（非常常见） B1 noun

最常见: Guard

	A sentinel	Guard
发音	🇬🇧 //ˈsɛntɪnəl// 🇺🇸 //ˈsɛntɪnəl//	🇬🇧 /["/ɡɑːd/"]/ 🇺🇸 /["/ɡɑːrd/"]/
含义	A guard or lookout that watches for danger.	To protect or keep safe.
例句	The sentinel stood tall, vigilant against any approaching enemies.	The guard stood at the entrance to the building.
语域	中性	中性
常见程度	10000 以上（较少见）	前 1000（非常常见）
CEFR 等级	-	B1
词性		noun
搭配	station a sentinel, sentinel species, data sentinel, sentinel surveillance, environmental sentinel	armed, uniformed, border, post, station, patrol something, protect something, escort somebody, duty, dog, close, 24-hour, constant, off (your) guard, on (your) guard, under guard, drop your guard, keep guard of something, keep your guard up, civil, national, palace, change, call out, guard of honour/​honor, civil, national, palace, change, call out, guard of honour/​honor, trigger, fire, shin
反义	-	abandon, release, expose
常见错误	Confused with 'sentient' - 'sentinel' refers to a guard, while 'sentient' means having awareness., Using 'sentinel' incorrectly in plural form - some may say 'sentinels' when referring to them as a collective., Assuming it's only used in military context - 'sentinel' can also describe environmental monitors.	Confused with 'warden' — a guard protects but a warden manages., Using 'guard' without an object — always specify what is being guarded., Mixing up 'guard' with 'greet' — they have different meanings.
用法说明	Used in both formal and informal contexts. 'Sentinel' can refer to a person or a system that monitors something important.	Use 'guard' when talking about protecting someone or something. It's appropriate in most contexts, but less common in casual conversations.

在真实片段中看它

A sentinel. A killing machine designed for one thing.

A sentinel

The Lord Of The Rings › The return of the king

Guard of the Citadel.

So when Sollozzo is being guarded, he's invulnerable.

The Lord Of The Rings › The Fellowship Of The Ring

And the tower guard shall take up the call:

The Lord Of The Rings › The return of the king

Guard of the Citadel.

So when Sollozzo is being guarded, he's invulnerable.

Guard

常见问题：A sentinel 对比 Guard

A sentinel和Guard 有什么区别？

A sentinel: A guard or lookout that watches for danger. Guard: To protect or keep safe.

哪个更常见：A sentinel和Guard？

Guard 在日常英语中最常见。

能各给一个例子吗？

A sentinel: The sentinel stood tall, vigilant against any approaching enemies. Guard: The guard stood at the entrance to the building.

我可以互换使用 A sentinel和Guard 吗？

不总是。A sentinel和Guard 相关，有时可以互换，但在语域、常见程度和用法上不同，所以换用可能改变意思或语气。替换前先看看上面的区别。