1. By the next day the exposed parts of his body had turned a chocolate brown.
    第二天，他身上裸露的部位变成了巧克力一样的棕色。

2. When he smiled he exposed a set of perfect white teeth.
    他笑时露出了一口漂亮的白牙.

3. They exposed the true aims of the war.
    他们揭露了这次战争的真实目的。

4. Actually the ocean floors are almost as irregular as the exposed land areas.
    实际上洋底几乎和露出的陆地一样是高低起伏的。

5. Although the limestone surface is gone, the huge stones are exposed and you could climb on them, like steps to the top.
    大金字塔表面的石灰石已经剥落，不过大石块裸露了出来，人们可以像登台阶似的一步一步地爬上顶端。