You can effectively influence your pup's behavior and mental development even in its first four weeks of life. 即使在幼犬剛出生的頭四周里，你也能很有效的影響他們的行為與智力發(fā)育。
It is not clear how subclinical hypothyroidism,where there is normal thyroxine,impairs fetal brain development. 妊娠期亞臨床甲減影響后代智力發(fā)育的確切機制尚不清楚。
His mental development kept pace with the growth of his body. 他的智力發(fā)展和他的體格發(fā)育齊頭并進(jìn)。
Each must traverse the same intellectual scale of development, and each must master the same spiritual tests of progression. 每個(gè)必須通過(guò)同樣的智力發(fā)展的衡量，并且每個(gè)必須精通同樣的靈性發(fā)展試驗。
