human
人类＝human being人类的；人性的
Humans first walked upon the moon in 1969.
人类于1969年首次登陆月球。
He has a lot of interest in human history.
他对人类的历史很有兴趣。
To err is human, to forgive divine.
犯错是人性，宽恕乃是神性。——谚语
common
共通处不可数；共同的；普通的＝ordinary
Even though we are twins, we have very little in common(with each other).
虽然我们是双胞胎，彼此的共同点却很少。
We had a common goal, so we decided to work together.
我们有共同的目标，所以决定要一起合作。
Earthquakes are common in this part of the world.
在世界的这一带，地震可说是司空见惯。
commonly
普遍地
Knee injuries are commonly found among basketball players.
膝伤在篮球员中很常见。
uncommon
罕见的
The flower is quite uncommon in our country.
这种花在我国很罕见。
final
最后的；决定的；期末考；决赛
The judges' decision is final.
评审委员的裁决是最后决定。
John is busy preparing for the final examinations.= John is busy preparing for the finals.
约翰正忙着准备期末考。
They lost to the home team at the finals.
他们在决赛中输给地主队。
finally
最后地＝at last
It's the weekend, and I can finally relax.
周末到了，我终于可以轻松了。
above
在……之上；在上面；在前文中；前述的
I saw some birds flying above the tower.
我看见几只鸟儿在塔的上方翱翔。
I see a bird above.
我看见上面有只鸟。
As I mentioned above, there have been a lot of changes lately.
如上所述，近来有许多改变。
If you agree to the above rules, please sign here.
如果你同意上述规定，请在这里签名。
below
在……之下，低于……；在下面
When the temperature is below zero, water will freeze.
温度降至零下时，水会结冻。
He heard singing from the room below.
他听到楼下房间传来的歌声。
piece
一块，一片；艺术、文学作品一首、一篇、一幅
Dad bought a piece of land near my school.
爸爸在我学校附近买了一块地。
This wonderful piano piece is popular with many people.
这首美妙的钢琴曲受很多人欢迎。
The test was a piece of cake for him.
这个考试对他来说非常容易。