头围

yīng ér tóu wéi de biàn huà bèi rèn wéi shì dà nǎo fā yù de zhǐ biāo

婴儿头围的变化被认为是大脑发育的指标。

The changing size of an infant's head is considered an index of brain growth.

tóu wéi hé xiōng wéi

头围和胸围

head circumference and chest circumference