Secretions
n. 分泌（物）( secretion的复数形式 )
🗣️ 情景例句
Learning to express onself well is an important part of education.
学会把意思表达清楚是受教育的一个重要方面。
What track does the Metroliner leave from?
华纽特快从第几轨道开出？
He's only forty-one years old, and he has already been to nearly every country in the world.
他只有41岁，但他却过世界上几乎每一个国家。