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1·This hard work has drained away my keenness.

这种艰苦的工作削弱了我的锐气。

2·A few weeks' hard work should damp down his keenness.

几星期的艰苦工作减弱了他的热情。

3·His speech fired the people with keenness for the plan.

他的发言引起了人们对这个计划的强烈兴趣。

4·Her keenness for sport soon yielded place to an interest in music.

她对音乐的兴趣很快替代了她对体育运动的热心。

5·The razor?blade is proud of its keenness when is sneers at the sun.

当剃刀刃嘲笑太阳时，它因自己的锋利而妄尊自大。

6·John's keenness for sport soon yielded place to an interest in music.

约翰对体育的迷恋很快就被对音乐的兴趣所取代了。

7·His headache had departed; his every sense seemed to have gained keenness.

他头不疼了，于是他的每个感官又恢复了敏锐。

8·We should live each day with gentleness, vigor and a keenness of appreciation.

我们每天都应该以优雅的姿态，充沛的精力，抱着感恩之心来生活。

9·The scabbard is content to be dull when it protects the keenness of the sword.

刀鞘保护刀的锋利，它我自己则满足于它的迟钝。

10·The scabbard is content to be dull when it protects the keenness of the sword.

刀鞘保护刀的锋利，它自己则满足于它的迟钝。

锋利

1·The scabbard is content to be dull when it protects the keenness of the sword.

刀鞘保护刀的锋利，它我自己则满足于它的迟钝。

2·The scabbard is content to be dull when it protects the keenness of the sword.

刀鞘保护刀的锋利，它自己则满足于它的迟钝。

3·The razor?blade is proud of its keenness when is sneers at the sun.

当剃刀刃嘲笑太阳时，它因自己的锋利而妄尊自大。

4·Thee scabbard is content to be dull when it protects the keenness of the word.

3剑鞘保护剑的锋利，自己却满足于它自己的迟钝。

5·The scabbard is content to be dull when it protects the keenness of the sword. Stray Bird-Ranbindranath Tagore.

刀鞘保护刀的锋利，它自己则满足于它的迟钝。《飞鸟集》-泰戈尔。

敏锐

1·Sunshine will help. So will South Africa’s sporting culture, and its keenness for acceptance after the long years of the anti-apartheid sporting boycott.

南非阳光正灿烂，其运动文化对展示非洲亦有所裨益，以及多年反种族隔离斗争之后南非对外界认可的敏锐。

2·It helps in more peace of mind, better health, more keenness for life, and an ever-growing sense of internal well-being.

它帮助人们获得心灵的安宁，更多的健康，对于生活更加敏锐，并获得一种不断增加的内在幸福感。