pollutant
A type of ribbon attached to the hilt of a sword, originally as a way of fastening it to the wrist, but later chiefly as an ornament.
plural of schlimazl
A foreign substance that makes something dirty, or impure, especially waste from human activities.
(chemistry) Existing in the state of a protoxide; said of an oxide.
工場の古くなったフィルターのせいで有害な汚染物質が川に入り込み、水生生物が被害を受けた。
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