医院员工日夜不停地工作，以照顾危重病人。

Hospital staff work ___around ___the ___clock to care for critically ill patients.

在当今竞争激烈的世界中，许多专业人士感到压力，需要随时待命。

In today's competitive world, many professionals feel pressured to be available ___around ___the ___clock.

在这次重大事件期间，新闻编辑确保全天候提供更新。

The news editor ensured that updates were provided ___around ___the ___clock during the major event.