酚类和酰基苯胺能被极稀的硝酸硝化.Phenols and anilides can be nitrated with very dilute nitric acid.这个弱点就是一种称为N - 肉豆蔻酰基转移酶或NMT的酶.The weakness inside is an enzyme called by N - myristoyl transferase ( NMT ) transferase, or NMT.再溴代得到2-溴 -4...
He suggested that tangling fishing gear should be made a criminal offence.他提议，缠绕捕鱼器材应该算刑事犯罪。All the newspapers wanted to do was to photograph the police officers tangling with the demonstrators.报纸最希望拍到的就是警察和示威者扭打的场面。Furt...
Unenlightened and undirected, I can do so little.但若得不到启蒙和指导，我就差不多无能为力了。The thought of some old men is still old-fashioned and unenlightened.某些老人的思想仍然是老式的和落后的。They'll only abuse us for being unenlightened.无非是骂我们不开明....
An atom itself is a complete whole, with its electrons, protons and neutrons and other elements...一个原子本身就是一个完整的整体，包括电子、质子、中子及其他元素。The neutrons and protons form the core of the atom.中子和质子构成了原子核.A substance donates protons...