好词典
sharp
UK /ʃɑːp/US /ʃɑːrp/
词源
源自古英语'scearp'，与古高地德语'scarph'、古诺尔斯语'skarpr'同源，最终源自原始日耳曼语'skarpaz'，意为'切割'。
adjective
❶ 形容物体边缘或尖端非常锋利，能够轻易切割或刺穿东西。
“Be careful with that knife, it's very sharp.”
（小心那把刀，它非常锋利。）
“The cat's claws are sharp enough to scratch the furniture.”
（猫的爪子锋利到可以刮坏家具。）
❶ 形容人思维敏捷、反应快，能够迅速理解或解决问题。
“She has a sharp mind and always solves problems quickly.”
（她思维敏捷，总能迅速解决问题。）
“The lawyer's sharp questioning exposed the witness's lies.”
（律师犀利的提问揭露了证人的谎言。）
❶ 形容声音高亢刺耳，或光线明亮刺眼。
“The sharp whistle startled everyone in the room.”
（刺耳的哨声惊动了房间里的所有人。）
“She let out a sharp cry when she saw the spider.”
（看到蜘蛛时，她发出一声尖叫。）
同义词:keen, acute, pointed, piercing, astute
adverb
❶ 表示准时或突然地，常用于时间或动作的描述。
“The meeting starts at 9 o'clock sharp.”
（会议九点整开始。）
“He turned sharp left at the intersection.”
（他在十字路口突然左转。）
同义词:precisely, exactly, abruptly, suddenly
常见短语
sharp tongue — 指说话尖酸刻薄，容易伤人。
“Be careful what you say around her - she has a sharp tongue.”
（在她面前说话要小心——她说话尖酸刻薄。）
sharp as a tack — 形容人非常聪明机智，思维敏捷。
“Despite his age, the professor is still as sharp as a tack.”
（尽管年事已高，这位教授仍然思维敏捷。）
look sharp — 催促别人快点行动或提高警觉。
“Look sharp! The boss is coming and we're not ready.”
（快点！老板来了我们还没准备好。）