Teichoic acid
[化] 磷壁酸\\n[医] 壁酸(为细胞型成分之一)
🧩 词语组成解析
🗣️ 情景例句
and you care about us,
而且关心我们大家，
Oh, Mr. Student.
哦，老兄，你是学生吧。
Up to now, historians have assumed that calendars came into being with the advent of agriculture, for then man was faced with a real need to understand something about the seasons.
历史学家迄今认为日历是随农业的问世而出现的，因为当时人们面临着了解四季的实际需要，