她快步走了一会儿，以排解心中的沮丧。She went for a brisk walk to work off her frustration.现在可以看到他快步跑过田地。He was now to be seen legging it across the field.韦德快步走到冰箱边又拿出一罐啤酒。Wade walked quickly to the refrigerator and pulled out another beer...
无麸质饮食对一些关节炎患者有疗效。Some cases of arthritis respond to a gluten-free diet.这种药物通过提高大脑中血清素的含量来产生疗效。The drug works by increasing levels of serotonin in the brain.在这种药的疗效和副作用之间有个权衡利弊的问题。There is a trade-off between the benefits...