梅琳达：这是我们最喜欢的一张图表，它显示自1990年起儿童每年死亡人数已经下降了一半。 1。

Melinda: : Here's one of our favorite charts. It shows that the number of childhood deaths per year has been cut in half since 1990.

youdao

梅琳达：这是我们最喜欢的一张图表，它显示自1990年起儿童每年死亡人数已经下降了一半。 1。

Melinda: : Here's one of our favorite charts. It shows that the number of childhood deaths per year has been cut in half since 1990.

youdao