我们忙忙碌碌，常常在短时间内从事大量的活动。
Our busy lives involve us doing a lot of activities in a short space of time.
护士和其他医护人员要从事大量繁重的搬运工作。
Nurses and other health care workers do a lot of heavy lifting on the job.
出席这一事件的年轻人代表100多个国家，并且在从事大量广泛的道路安全努力。
Young people attending the event represented more than 100 countries, and are involved in a vast array of road safety efforts.
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