计划就这么定了—除非出现异常情况。

That's the plan—unless anything untoward happens.

《牛津词典》

除了偶尔出现异常情况外，电力系统的频率可以保持非常准确。

System frequency is held very accurately except during infrequent time when abnormal situations exist.

youdao

除了偶尔出现异常情况外，电力系统的频率可以保持非常准确。

System frequency is. held very accurately except during infrequent time when abnormal situations exis...

youdao