sort out - to separate one type of things from a group of things, fair trade - the activity of making, buying, and selling goods in a way that is morally right, recycle - to sort and collect rubbish in order to treat it and produce useful materials that can be used again, light bulb - the glass object inside a lamp that produces light , litter - small pieces of rubbish that have been left lying on the ground in public places, garbage - waste material or unwanted things that you throw away, bio-waste - waste that is composed chiefly of organic matter, reusable - able to be used again, rechargeable - able to be charged again, degrade - to change to a simpler form,

New Horizons - B1 - Conversation - Lesson 41 - Introduction

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