Pentasaccharides
五糖
🗣️ 情景例句
You.
你。
A galled horse will not endure the comb.
擦伤的马不耐梳。
After years of conditioning, most of us have developed an unshakable faith in railway timetables.
经过多年的适应，大多数人对火车时刻表产生了一种不可动摇的信念。