| 短语 | at a time |
| 释义 | at a time separately in the specified groups or numbers 每次, 一次： he took the stairs two at a time. 他两步一跨冲上楼梯。 at a ˈtimeseparately or in groups of two, three, etc. on each occasion每次；逐一；依次We had to go and see the principal one at a time.我们得逐一去见校长。She ran up the stairs two at a time.她一步两阶地跑上楼梯。at a timeon each occasion 一次 * They learn 30 words and a passage at a time. 他们一次学30个单词和一篇短文。 * He checked them off one at a time as they came in. 当他们进来时，他对他们逐个检查。at a time每次;一次：Tom has made a plan to learn a few new words at a time，he will learn many words in due course.汤姆已经订了计划，每次学几个生词，过一定时间他将学会许多生词了。 |
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