IPA発音、定義、例文、インタラクティブクイズ付きの重要な単語。
種類タグ、二言語の定義、使い方の説明、例文を含むフレーズ。
The practice of protecting wild plant and animal species and their habitats.
Harmful substances in the air that can damage health and the environment.
A decrease in the number of individuals living in a specific area.
To increase in quantity or size of population.