The development of Bas 90 started in the 1970s and was implemented in the 1980s .
The development of Bas 90 began in the 1970s and was implemented in the 1980s .
The development of Bas 90 began in the 1970s and was implemented in the 1980s .
文の言い換えを書いてください: The development of Bas 90 started in the 1970s and was implemented in the 1980s . 出力: