be beforehand with

例句：

1. 1. We need to be beforehand withour plans so that we can avoid anylast-minute hassles.
   我们需要提前准备好我们的计划，以免最后一刻出现麻烦。
2. 2. Theteacher asked us to be beforehand withour work so that we could start thelesson on time.
   老师要求我们提前准备好工作，以便我们能准时开始上课。
3. 3. Beforethe big event, she was always bebeforehand with her preparations.
   在大型活动之前，她总是提前做好所有的准备工作。