Beware means 'be careful — there is danger here'. What makes it worth a whole entry is that it is grammatically strange: it is a defective verb, meaning it has no other forms. There is no 'bewares', no 'bewared', no 'is bewaring'.

Beware Beware means 'be careful — there is danger here'意思是「小心——這裡有危險」。What makes it worth a whole entry讓它值得單獨列一條的原因 is that it is grammatically strange是它文法上很特別: it is a defective verb它是個缺項動詞(defective verb), meaning it has no other forms意思是它沒有別的變化形式。There is no 'bewares', no 'bewared', no 'is bewaring'沒有'bewares'、沒有'bewared'、也沒有'is bewaring'這些形式。

You can only use it as a command — 'Beware!', 'Beware of the dog', 'Beware the ides of March' — or after another verb that needs the plain form: 'You should beware of cheap imitations', 'Travellers must beware of pickpockets'. Anything else is wrong.

You can only use it as a command你只能把它當祈使句用 — 'Beware!'像'Beware!'（小心！）, 'Beware of the dog''Beware of the dog'（內有惡犬）, 'Beware the ides of March''Beware the ides of March'（小心三月十五日） — or after another verb that needs the plain form或是放在需要原形動詞的另一個動詞後面: 'You should beware of cheap imitations'像'You should beware of cheap imitations'（你該小心廉價仿冒品）, 'Travellers must beware of pickpockets''Travellers must beware of pickpockets'（旅客務必小心扒手）。Anything else is wrong除此之外的用法都是錯的。

You may see it with 'of' or without. With 'of' is the everyday pattern and takes a noun: beware of the dog, beware of strangers, beware of anyone who promises quick money. Without 'of' is more literary and dramatic, and is how the famous lines go: 'Beware the ides of March', 'Beware the Jabberwock, my son'. You can also say 'beware that...' or 'beware how...' in formal writing.

You may see it with 'of' or without你會看到它加'of'，也會看到不加。With 'of'加'of' is the everyday pattern and takes a noun是日常的用法，後面接名詞: beware of the dog像beware of the dog（小心那隻狗）, beware of strangers beware of strangers（小心陌生人）, beware of anyone who promises quick money beware of anyone who promises quick money（小心任何說能讓你快速賺錢的人）。Without 'of'不加'of' is more literary and dramatic比較文學、比較有戲劇感, and is how the famous lines go那些有名的句子就是這樣講的: 'Beware the ides of March'像'Beware the ides of March'（小心三月十五日）, 'Beware the Jabberwock, my son''Beware the Jabberwock, my son'（孩子，小心那頭Jabberwock）。You can also say 'beware that...' or 'beware how...' in formal writing在正式文章裡，你也可以說'beware that...'或'beware how...'。

In tone it is stronger and more old-fashioned than 'be careful'. A parent says 'be careful' to a child; a sign on a gate says 'BEWARE'. It suits warnings about a real hazard — a dog, a cliff, a con artist — and is often used half-jokingly today for smaller things.

In tone在語氣上 it than 'be careful'它比'be careful' is stronger and more old-fashioned更強烈也更老派。A parent says 'be careful' to a child父母對小孩會說'be careful'; a sign on a gate says 'BEWARE'門口的牌子則會寫'BEWARE'。It它 suits warnings about a real hazard適合用來警告真正的危險 — a dog像一隻狗, a cliff一處懸崖, a con artist或一個騙子 — and is often used half-jokingly today for smaller things而現在也常被半開玩笑地用在比較小的事情上。