He knows nothing except English.

他除英语以外什么都不知道。

youdao

All my subjects are OK except English.

除了英语其它的都很好。

youdao

Also he masters Russian except English.

除英语外，他也精通俄语。

youdao

Devolving more power to the English regions, for example, might help, except that the English are not conspicuously keen.

ECONOMIST: Bagehot

The policy required Filipino-American employees to speak in English except when speaking to a patient with other language needs or during break time.

FORBES: English-Only Policies in the Workplace: Are They Legal? Are They Smart?

It was a wonderful and strange little Christmas party, with us speaking no Dutch and the nuns speaking no English, except for the tiny bit Mother Superior knew.

NPR: Kate Nolan, WWII Combat Nurse