【Hi World】評論
單字題Progress in medical science has resulted in the death rates to fall. With the combination of high birth rates and low death rates, it may lead to the population explosion in many countries all over the world.醫學的進步導致死亡率下降。 高出生率和低死亡率相結合，可能會導致全球許多國家人口爆炸。(A) application (n.) 申請(B) biology (n.) 生物學(C) dependence (n.) 依靠；信任；從屬(D) explosion (n.) 爆發；爆炸英文7000單字表：https://hiworldwelcome.blogspot.com/2021/12/7000.html