乌龟背上有硬壳.A tortoise has a shell on his back.他们砸开坚果，剥去硬壳。They cracked the nuts and removed their shells.国务秘书从他的官员的硬壳里伸出了柔软的脑袋.The secretary had put forth his soft head from the official shell....
Iron corrodes unless it is greased or kept clean.如果不涂油或保持清洁铁便会腐蚀.Acid rain destroys trees and corrodes buildings.酸雨毁坏树木，腐蚀建筑物。I do not know why acid corrodes the metal.我不知道酸为什么腐蚀金属....
目前普遍认为，毒素对皮下脂肪团堆积影响不大。Current thinking suggests that toxins only have a small part to play in the build up of cellulite.去除脂肪团至今仍是皮肤美容学上的终极目标之一.The removal of cellulite remains one of the holy grails of cosmetic dermatolo...