| 单词 | perform a task |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔change〕To alternate with another person in performing a task.交替：与他人交替做同一份工作美国传统〔turnaround〕The process of or time needed for performing a task, especially receiving, completing, and returning an assignment.周转时间：完成一项任务的过程或所需时间，尤指接受、完成并提交某一任务美国传统 |
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