Oxford Discover 3 - Unit 13: How do inventions change our lives? - Lesson 2
<p><span style="background-color:rgb(255,255,255);color:rgb(8,27,58);"><strong>1.Ôn tập từ vựng:</strong></span></p><p><span style="background-color:rgb(255,255,255);color:rgb(8,27,58);">lever, ramp, wedge, wheel and axle, screw, light bulb, doorknob, stairs, axe, hammer</span></p><p> </p><p><span style="background-color:rgb(255,255,255);color:rgb(8,27,58);"><strong>2.