塔尼娅的双手在琴键上翻飞。Tanya's hands rippled over the keyboard.琴键是钢琴上用手指敲击的部件,它能使钢琴发出乐音.A key is the part of a pianoforte that you touch to make music.钢琴的琴键一弹琴弦就振动出声.The strings of a piano vibrate when the keys are struck....
Provided is a method of preparing the anthracycline carminomycin using a starting material comprising daunorubicin.本文提供了一种使用包含柔红霉素的起始物料来制备蒽环类洋红霉素的方法....