tracing contacts of people who tested positive helped reduce the time it took to isolate those who were infectious by nearly half.- ]) | ~+ a* w8 O
: v5 w$ e1 e9 ?4 A主干：tracing contacts helped reduce the time by nearly half. / d" @+ O# o0 q" l2 h# ~contacts of people : people 是后置定语，修饰 contacts。. S, }5 y5 u. a' b( k
who tested positive : 定语从句，修饰 people。 N7 U6 z& x9 [/ p$ ^( u
(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.4 y1 F* w8 O$ r& \) B
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
