proportion|proportions

儿童占世界人口的很大一部分。

Children make up a large ___proportion of the world's population.

这个班级由大致相等比例的男性和女性组成。

The class consists of men and women in roughly equal ___proportions.

雌性几维鸟产下的蛋相对于其体型而言最大，保持着世界纪录。

The female kiwi holds the world record for laying the largest egg in ___proportion to its body size.