teach的三单形式是teaches。teaches的意思是讲授，教授，教，训练，教育，教导。teaches的例句：He teaches Esperanto at that university（他在那所大学教世界语）。

teaches的例句：She teaches swimming，lifesaving and water aerobics（她教授游泳，救生术和水中有氧运动）；Children's television not only entertains but also teaches（儿童电视节目不仅有娱乐性而且还有教育意义）。