| 单词 | 成活率 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔birth〕The percentage of live births (= children who are born alive and continue to live) continues to increase.婴儿成活率不断提高。剑桥高阶〔maternal〕Maternal age affects the baby's survival rate.母亲的年龄影响婴儿的成活率。牛津高阶Babies born before 22 weeks have a very low survival rate, because their organs are not sufficiently developed to support life outside the womb. 22 周以前出生的婴儿成活率很低，因为他们的器官尚未充分发育以维持其在子宫外的生命。剑桥国际The percentage of live births (= children who are born alive and continue to live) continues to increase.婴儿成活率不断提高。剑桥国际 |
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