做好准备随时做某事 Be poised to do
有事随时通知我 Keep me informed
随时准备做某事 be always ready to do
随时做点事 feel free to do something
时事 随时
Current affairs are always up-to-date.
以上为机器翻译结果，长、整句建议使用 人工翻译 。
飞行时事务长通常随时准备帮助旅客。
The purser is always ready to help passengers during a flight.
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