The Open Dictionary

concentration

noun

UK/ˌkɒn.sᵊnˈtreɪ.ʃᵊn/
US/ˌkɑːn.sᵊnˈtreɪ.ʃᵊn/

Definitions of concentration noun

attention(注意力)

  1. B2Uncountable(不可數名詞)

    the ability to focus one's mind and attention on a specific task or subject, excluding distractions

    專注；專心

    • The loud noises outside made it difficult for me to maintain my concentration.

      外面的噪音讓我難以保持專注。

    • Her face showed an expression of complete concentration.

      她的臉上露出了全神貫注的表情。

    • I have found that meditation helps to improve my concentration skills.

      我發現冥想有助於提升我的專注力。

amount(數量)

  1. C2Countable(可數名詞)Uncountable(不可數名詞)

    a large amount or number of something gathered in one location

    集中；聚集；匯集

    • There is a significant concentration of military personnel in that area.

      那個區域有大量的軍事人員聚集。

    • The city has a high concentration of population.

      這座城市的人口密度很高。

    • There is a high concentration of industries here.

      這裡有很高的產業集中度。

  2. Countable(可數名詞)Uncountable(不可數名詞)chemistry(化學)specialized(專業)

    the proportion of a specific substance present within another substance or solution

    濃度

    • a concentration of one part per million

      百萬分之一的濃度

    • Elevated concentrations of toxic substances were discovered in the contaminated sites.

      在被污染的地點發現了有毒物質的濃度升高

    • The scientists are examining the concentration of the solution.

      科學家們正在檢測溶液的濃度

game(遊戲)

  1. Uncountable(不可數名詞)

    a card game that tests the player's memory by matching pairs of cards.

    配對紙牌遊戲