2. 增加数词或其他词表示复数

　　(1)The lion is the king of animals.

　　狮是百兽之王。

　　(2)The very earth trembled as with the tramps of horses and murmur of angry men.

　　连大地都震动了，仿佛万马奔腾，千夫怒吼。

　　(3)The mountains began to throw their long blue shadows over the valley.

　　群山已在山谷里开始投下蔚蓝色长影。

　　(4)Most were absorbed into the Russian empire through colonial expansion under the Tsars.

　　大部分是在历代沙皇统治下，通过殖民扩张而并入俄罗斯帝国的。