¹ / Ig5zR:st; I^`zRst/ n
[U] waste fumes, gases, steam, etc expelled from an engine or a machine （机器排出的）废气﹑ 蒸气等: the smell of the exhaust 排出的废气气味 * [attrib 作定语] exhaust fumes 排出的废气.
(also ex`haust-pipe) [C] outlet or pipe through which these gases are sent out 排气口; 排气管: My car needs a new exhaust. 我的汽车该换排气管了. =>illus at App 1 见附录1之插图, page xii.