Relacionar Columnas Vocabulary Unit 7 Matching GameVersión en línea Test your knowledge of Vocabulary Unit 7 concepts with this fun matching pairs game! por Maria Florencia Mena 1 Experimental 2 Compatible 3 Innovative 4 Behind the times 5 Affordable 6 Upgrade 7 Ahead of its time 8 Tried and tested 9 Spare parts Something that was proven in the past to be effective or reliable A duplicate part to replace a lost or damaged part of a machine. Something considered too advanced or modern to be understood or appreciated during the time Something featuring new methods; advanced and original. Something that is able to exist or occur together without problems or conflict. Late, old. Something based on untested ideas or techniques and not yet established or finalized. To improve the quality or usefulness of something Something inexpensive; reasonably priced.