1. North of the equator about 61 percent of the surface is covered by water.
    赤道以北, 大约百分之六十一的表面为水所盖.

2. North of the equator about 61 percent of the surface is covered by water.
    赤道以北, 大约百分之六十一的表面为水所盖.

3. During 1994, for example, 61 officers (54 men and seven women) were forced into early retirement after being attacked on duty.
    例如，1994年，共有61名警员（男性54人，女性7人）由于履行职责时遭受攻击而不得不提早退休。