sharp

• 形容物体边缘或尖端锋利，能够切割；也用来形容人头脑敏锐，或形容方向、质量等的急剧变化。

Describes an object with a fine edge or point capable of cutting; also used to describe a person's intelligence or a sudden change in direction or quality.

1. Having a thin edge or pointA2formal

   Able to cut or pierce easily; having a fine edge or point.

   锋利的

   • Be careful with that knife; it's very sharp.
   • The scissors are sharp enough to cut through paper.
   • He used a sharp needle to sew the fabric.

   同义词acutecuttingedgedfinekeenrazor-sharp

   反义词bluntdull

2. Intelligent or quick-wittedB1formal

   Having or showing a quick and intelligent mind.

   聪明敏锐

   • She is a sharp student who always asks good questions.
   • He has a sharp mind for solving puzzles.
   • The detective made a sharp observation about the case.

   同义词acuteastutebrightcleverkeenperceptivequick-wittedsmart

   反义词dimdulldumbslowstupid

3. Abrupt or suddenB1formal

   Happening suddenly and often severely.

   急剧的

   • There was a sharp increase in temperature today.
   • The car made a sharp turn to avoid the obstacle.
   • She felt a sharp pain in her back.

   同义词abruptacuteprecipitatesuddenunexpected

   反义词gradual

4. Clear and distinctB1formal

   Clearly defined; not blurred or fuzzy.

   清晰的

   • The photograph is very sharp and detailed.
   • He has a sharp memory for names and faces.
   • The image on the screen is sharp and easy to read.

   同义词clearcrispdistinctprecise

   反义词blurryfuzzyindistinctunclearvague

5. Fashionable or stylishB2informal

   Attractively neat and stylish in appearance.

   时髦的

   • He looked very sharp in his new suit.
   • She always wears sharp, modern clothes.
   • That's a sharp outfit you have on today.

   同义词chicdappernattysmartsprucestylishtrendy

   反义词dowdyfrumpyoutdatedunfashionable

• 副词，表示“正好、恰好”在某一时间，如“正好五点”。也可表示“突然、急剧”地改变方向或移动。

An adverb meaning "exactly" or "precisely" at a specified time. It is used to indicate punctuality, as in 'at 5 o'clock sharp.' It can also mean "suddenly" or "abruptly" when describing a change in direction or movement.

1. Exactly at a specified timeB1formal

   Used to indicate that something happens precisely at the stated time.

   正好

   • The meeting starts at 9 o'clock sharp.
   • Please be here at noon sharp.
   • The train departed at 7:30 sharp.

   同义词exactlyon the dotpreciselypromptlypunctually

   反义词aboutapproximatelyroughly

2. Abruptly or suddenlyB2informal

   In a sudden or abrupt manner, often indicating a change in direction or action.

   突然地

   • He turned sharp left to avoid the obstacle.
   • The car stopped sharp at the red light.
   • She pulled the rope sharp, causing it to snap.

   同义词abruptlysharplyshortsuddenlyunexpectedly

   反义词graduallyslowly

• 音乐中表示将基本音级升高半音的音或记号，即升号；也可指升高半音后的音。

A noun referring to a musical note raised a semitone above natural pitch, or a symbol indicating this in musical notation.

1. B1formal

   A musical note that is one semitone higher than the natural note, indicated by the symbol ♯.

   升音

   • The piece is written in the key of C sharp.
   • She played an F sharp on the piano.
   • The composer added several sharps to the melody.

2. B2formalbritish

   A long, thin, sharp-pointed sewing needle, typically used for heavy fabrics or embroidery.

   缝针

   • She threaded the sharp to mend the torn curtain.
   • The tailor used a sharp for the delicate embroidery work.
   • He bought a pack of sharps for his sewing kit.