Acog
abbr. 美国妇产科学会（American College of Obstetricians and Gynecologists）
🗣️ 情景例句
Help yourselves.
请随便用。
Never trust of fine words.
切勿轻信漂亮的言词。
Take a deep breath and I'll time you. But don't drown!
深吸一口气，我来给你计时。但别淹着！