accuracy學測 L4KK [ˈækjɚəsi]/ˈækjɚəsi/
準確度;精確性·(數學)有效數字;精度
科學數據與新聞報導常見的精準用字
The player's accuracy helped him hit the target with every shot.

這名球員的準確度讓他每一擊都命中目標。

accuracy 指的是結果與真實值之間的貼近程度,從射箭命中紅心到科學數據無誤,都靠它衡量。

一個畫面:箭正中紅心

箭中紅心箭穩穩射中正中央,毫無偏差
刻度吻合量出的數值與實際值完全對齊
位數精確數字每一位都正確無誤

義項

秤重精準B2noun準確度;精確性
The scale's accuracy was important when she weighed the flour for the cake.
秤的準確度很重要,因為她要秤麵粉來做蛋糕。
high accuracyimprove accuracy
刻度精細B2noun(數學)有效數字;精度
A ruler with more marks gives numbers with higher accuracy.
刻度愈多的尺,量出的數字精確度愈高。
the accuracy of a measurementincrease accuracy

片語

pinpoint accuracy精準到點 →精確到不能再精確
with great accuracy高度精準 →以極高的準確度進行
check the accuracy核對正確 →確認資料是否正確

你會不會這樣說?

The scale's ___ was important when she weighed the flour for the cake. (accuracy / accurate)

看答案

accuracy

空格後接 was,需要名詞,accurate 是形容詞不可用。

尺上的刻度越多,量出的數字精確度就越低。(對/不對)

看答案

不對

刻度越多,數字的準確度越高,不是越低。

字族

accurate 準確的;精確的・accurately 準確地・inaccurate 不準確的

順路看看

多益練習

本區為多益情境練習,與上方釋義獨立編寫

情境例句

倉庫設備檢查
The technician checked the accuracy of the warehouse scale using a reference weight.
技術人員使用標準砝碼檢查倉庫磅秤的準確度。
工程計算
The engineer calculated the result to an accuracy of five significant figures.
工程師將結果計算到五位有效數字的精度。

詞族

accuracy 名詞 準確度;精確性・accurate 形容詞 準確的・accurately 副詞 準確地・inaccurate 形容詞 不準確的

四選一

The technician checked the ____ of the scale before weighing the samples.

  • accurate
  • accurately
  • inaccurate
  • accuracy
看答案

accuracy

此處 the ____ of the scale 需要表示受檢查特性的名詞,因此選 accuracy。accurate 和 inaccurate 都是形容詞,不能在此單獨表示磅秤的特性;accurately 是副詞,不能作 checked 的名詞受詞。

同義改寫

The technician measured the component's width with great accuracy. → The technician measured the component's width very accurately.
with great accuracy 與 very accurately 都表示量測值非常接近實際值。
The analyst calculated the result to an accuracy of five significant figures. → The analyst calculated the result so that it was correct to five significant figures.
兩句都表示計算結果準確到五位有效數字,對應來源的數學精度義。

延伸練習

回報這個字的錯誤