TA的每日心情 | 郁闷
2021-10-13 22:11 |
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签到天数: 73 天 [LV.6]常住居民II
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发表于 2020-5-7 06:50:33
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tracing contacts of people who tested positive helped reduce the time it took to isolate those who were infectious by nearly half.5 l- t: r; h' r2 X5 J9 c$ |8 E
. ?- s5 ~, I: M6 A0 ]* O X4 d主干：tracing contacts helped reduce the time by nearly half.
4 L; h& ? k9 k7 l9 Qcontacts of people : people 是后置定语，修饰 contacts。0 w" o& O% H! j5 W' t5 ^
who tested positive : 定语从句，修饰 people。6 P- j/ C; t6 q4 \, X
(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." C$ m: F: T" J0 Q, `' t3 a
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