1. Brittle things break easily.
    脆的东西容易破碎。

2. Because the gravity on the Moon´s surface is only a sixth of Earth´s (remember how easily the Apollo astronauts bounded along),
    由于月球表面的重力仅是地球表面的1/6 -- 还记得阿波罗飞船中的宇航员累松地跳跃 --

3. But animals of this age do not easily become subservient to man, and a very firm hand must be employed in the early stages.
    但这个年龄的象不易驯服，因此开始阶段需要有一位强有力的老手。

4. Wilmut's success didn't come easily.
    威尔莫特的成功得来不易。

5. This wood cleaves easily.
    这种木材容易裂.

6. There is no doubt that if she had not lost her rudder she would have won the race easily.
    如果它没有失去舵，无疑它会轻而易举地赢得这次比赛。

7. The envelope tears easily.
    这种信封容易扯破。

8. The Moon is likely to become the industrial hub of the Solar System, supplying the rocket fuels for its ships, easily obtainable from the lunar rocks in the form of liquid oxygen.
    月球很可能成为太阳系的工业中心。从月球上的岩石中很容易提炼出液态氧，作为航天飞船的燃料。

9. This may sound fantastic, but it is easily calculated.
    这点听起来令人难以置信，但却很容易计算出来。

10. There is no doubt that if she had not lost her rudder she would have won the race easily.
    毫无疑问，如果中途没有失去舵， "卡帝萨克"号肯定能在比赛中轻易夺冠。