tracing contacts of people who tested positive helped reduce the time it took to isolate those who were infectious by nearly half./ D8 |2 |/ _+ K) K! _' o
- a1 @ Z7 }' D" Z8 }5 j主干：tracing contacts helped reduce the time by nearly half.9 O. x' `$ D0 o
contacts of people : people 是后置定语，修饰 contacts。2 @! ~5 P$ u. v& s4 d
who tested positive : 定语从句，修饰 people。 + u! f% |# t# d2 Z1 h1 h( r9 c8 j(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. 9 f. L% D8 I! T" t/ h: A, }* G0 K, s( A4 @; f4 H/ W( C1 A; o
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.
发表于 2020-5-6 23:13:09
