live birth
n. 婴儿安全出生
例句与用法:
Infant mortality (ie The rate at which babies die) was 20 deaths per thousand live births in 1986.
1986年的婴儿死亡率为生育成活率的千分之二十。
live birth
n. 婴儿安全出生
例句与用法:
Infant mortality (ie The rate at which babies die) was 20 deaths per thousand live births in 1986.
1986年的婴儿死亡率为生育成活率的千分之二十。