/tɑ:sk; US tæsk ||; tæsk/noun [C] a piece of work that has to be done, especially an unpleasant or difficult one 工作，任务（尤指困难或讨厌的）: Your first task will be to type these letters. 你第一件工作是打好这些信。to perform/carry out/undertake a task 执行╱完成╱承担一项任务