Correct

世世代代

/ shì shìdài dài / 
Strokes

Definition

for many generations

Example

Definition

age after age; for generations; from generation to generation; generation after generation

1
Zhōng
中
rì
日
rénmín
人民
yīngdāng
应当
shìshìdàidài
世世代代
yǒuhǎo
友好
xiàqù
下去
  
。

The Chinese and Japanese people should keep on friendly terms for all generations.