生长激素对儿童的正常发育至关重要。

Somatotropin is crucial for normal growth in children.

受精卵需要适宜的环境才能正常发育。

The oosperm needs a suitable environment to develop properly.

由于无心，这个胎儿在子宫内无法正常发育。

Due to acardia, the fetus cannot develop normally in the womb.

婴儿出生前上唇和下唇没有正常发育形成的时候，就会出现这种缺陷。

The defect happens when a baby's top lip or mouth doesn't form properly before birth.

读心能力在正常发育中会顺利开展.

Such abilities unfold seamlessly in the normal course of development.

碘是一种对于生长和大脑的正常发育必需的营养素。

Iodine is an essential nutrient for growth and normal development of the brain.

微生物共生对于动物的正常发育和生长是必不可少的。

Microbial symbioses are essential for the normal development and growth of animals.

医学专家表示，城市里儿童的青春期提前会抑制身高的正常发育。

The early onset of puberty in urban children is stopping them from growing to their correct height, say medical experts.

只有均衡营养素，才能维持小儿的正常发育和健康。

The problem that carbohydrates cannot supply enough calories makes protein and fat fail to perform their normal functions.

酒精会扰乱胎儿的正常发育，并引起他一生的学习障碍及各种社交问题。

Alcohol can disturb the normal development of a fetus, leading to a lifetime of learning disabilities and social problems.