Macrosigma
[医] 巨乙状结肠, 乙状结肠扩张
🗣️ 情景例句
How long has he held office?
他已任职多长时间了？
He helps my father every day.
他每天都帮助我的父亲做事。
Learning English is like building a house.
学英语象盖房子。