我有一列，我想删除所有与上面相同的行。
这是数据帧df 打印（df）
0 Take #1
1 Take #1
2 Take #1
3 Take #1
4 Take #1
5 Take #1
6 Take #1
7 Take #1
8 Take #1
9 Take #1
10 Take #2
11 Take #2
12 Take #2
13 Take #2
14 Take #2
15 Take #2
16 Take #2
17 Take #2
18 Take #2
19 Take #2
20 Take #3
21 Take #3
22 Take #3
23 Take #3
24 Take #3
25 Take #3
26 Take #3
27 Take #3
28 Take #3
29 Take #3
...
Name: Description, Length: 970, dtype: object