有三大供用户选择的弹出控制系统：拉索式、外置式、内置式。

Three eject controllers for choices: cable-pulling, external and built-in styles.

youdao

有三大供用户选择的弹出控制系统：拉索式、外置式、内置式。

Three eject controllers for choices: cable-pulling, external and built-in styles.

youdao