ACID, a chemical substance that neutralizes alkalis, dissolves some metals, and turns litmus red; typically, a corrosive or sour-tasting liquid of this kind., BACTERIA, a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease., DETERGENT, a water-soluble cleansing agent which combines with impurities and dirt to make them more soluble, CLEANING, the action or process of making something clean, especially the inside of a house., AGENT, a substance or product used to remove dirt, stains, dust, and grime from surfaces..

activity

さんの投稿です
印刷
埋め込み

リーダーボード

表示スタイル

オプション

テンプレートを切り替える

自動保存: を復元しますか?