Oxford Discover 3 - Unit 15: Why do we need plants? - Lesson 4
<p><strong>1. Ôn tập từ vựng:</strong></p><p>soil, seeds, leaves, roots, stem, pollen, humans, petals, nectar, oxygen</p><p> </p><p><strong>2. Learn: </strong></p><p>- When something is warm, it has warmth.