Mastology
乳腺学
🗣️ 情景例句
He had a great capacity for learning.
他的学习能力很强。
The burden on likes is cheerfully borne.
爱挑的担子，就愉快轻松。
he identifies himself with its centre of gravity, its mass, its weight;
他把自身和物体重心、质量、重量融为一体。