Acog
abbr. 美国妇产科学会（American College of Obstetricians and Gynecologists）
🗣️ 情景例句
It is.
它是的。
Is it short way from here to the American Embassy?
从这里到美国大使馆要走一小段路。
Li Lei ran much faster than the other boys.
李磊跑得比其他男孩快得多。