tracing contacts of people who tested positive helped reduce the time it took to isolate those who were infectious by nearly half. ! @- W) I6 \6 F) I4 E. w; ` ( K9 A3 S. ~8 r主干：tracing contacts helped reduce the time by nearly half. 1 l* T2 y, u4 t9 a; B0 {1 econtacts of people : people 是后置定语，修饰 contacts。 * d2 d* f: G+ @9 L1 J6 g. s& z$ e. twho tested positive : 定语从句，修饰 people。7 T! b- F5 A" `! R: i, D
(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. * s8 @5 s* s2 d+ B- K4 {2 f% ^) w E
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
