...a beam of neutrons.一束中子The nucleus of an atom consists of neutrons, protons and other particles.原子核由中子 、 质子和其他粒子构成.Neutrons and protons are bound together in the nucleus of an atom.在原子核里，中子和质子是结合在一起的。Each atomic clust...
护士的手指应抬起婴儿的下颏使他的颈部后伸.The nurse's fingers elevate the infant's jaw to extend his neck.她悄然地应许了, 把下颏仰了起来.She assented in silence, and lifted her chin.他修面时把颏部刮破.He gashed his chin badly when shaving....
You can also take red ginseng in convenient tablet or capsule form.你也可以选择便于服用的红参片或红参胶囊。One tablet will purify a litre of water.一丸即可净化一升水。The recommended dosage is one tablet every four hours.规定剂量为每四小时服一片....