Illustration: At a Japanese elementary-school science bench, a child holds a horseshoe magnet just above several steel paper clips. The nearest clips rise into a short dangling chain from the magnet, while a wooden bead and a rubber eraser remain untouched on the tabletop.

JLPT N1nounLevel estimated by Bebop

作さ用よう

sayou

action, effect, function

Example sentences

  1. 暖あたたかい天候てんこうの時ときは、発汗はっかん作用さようが体温たいおんの調節ちょうせつをする上うえで役立やくだつ。

    During warm weather, sweating helps man regulate his body temperature.

    Tatoeba · CC BY 2.0 FR · Source

  2. 酸さんは、金属きんぞくに作用さようする。

    Acid acts on metals.

    Tatoeba · CC BY 2.0 FR · Source

  3. 物価ぶっかを押おし上あげるのにいくつかの要因よういんが作用さようした。

    Several factors operated to help prices go up.

    Tatoeba · CC BY 2.0 FR · Source

Kanji in 作用

  • 作make; productionOnサク・サKunつくる・つくり
  • 用utilize; businessOnヨウKunもちいる

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