总的来说，当今的老年人依然相对贫困。As a group, today's old people are still relatively deprived.在减肥过程中保持饮食的营养相对均衡是明智的。It makes sense to eat a reasonably balanced diet when slimming.我们服的药相对来说药性温和，但是我们却在把它们变成毒药。We're taking relat...
Here the Nile broadens out between the huge granite boulders.尼罗河在此处变宽，从两块花岗岩巨石间穿过。"Well," I said, grinding my cigarette nervously into the granite step.“好吧，”我边说边紧张不安地把香烟在花岗岩台阶上捻灭。The towers are made of steel cased in gra...
Crystals may be insulators, semiconductors, or conductors.晶体可以是绝缘体, 半导体, 或导体.Natural fabrics like silk and wool are better insulators than synthetics.丝绸和羊毛之类的纯天然织物比合成纤维的保暖性更好。Polluted insulators may flashover at any time...