1/complain释义:vi. 投诉;发牢骚;诉说vt. 抱怨;控诉2/例句:Some employees have complained about their performance.有员工对自己的业绩进行申诉。Many guests complain that the soup made by the chef is not tasty.许多客人都抱怨厨师做的汤不好喝。3/有:complain about抱怨complain ofn. 抱怨;抗议。