时代周刊的一句话，这句话是什么意思？

武汉加油

时代周刊的一句话，这句话是什么意思？
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EatingFlower

研究者发现，对检查结果为阳性的病人进行接触者追踪，有助于将需要隔离的人数减少近一半

葡萄柚

tracing contacts of people who tested positive helped reduce the time it took to isolate those who were infectious by nearly half.

! A/ ^# ?+ D0 a! u主干：tracing contacts helped reduce the time by nearly half.
* ^2 m# u5 r9 T' A( C( T" econtacts of people : people 是后置定语，修饰 contacts。
who tested positive : 定语从句，修饰 people。
(that) it took to isolate those who were infectious : 定语从句，修饰 time。这句中的 "who were infectious" 也是一个定语从句，修饰 those.
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SAP

跟踪检测阳性群体的(密切)接触者，对及时隔离传染者，可以起到事半功倍的效果。 'tracing contacts of people who tested positive' helped (to) reduce 'by nearly half' the time it took to isolate those who were infectious.

掌上百科0416

研究者发现，对检查结果为阳性的病人进行接触者追踪，有助于将隔离感染者花费的时间减少近一半