Treason in this country is still punishable by death.

在该国，叛国仍是死罪。

《柯林斯英汉双解大词典》

Murder is punishable by death in some countries.

在有些国家里杀人罪是该处死的。

youdao

Membership of the group is punishable by death, though this has not been enforced.

尽管仍没有被强制执行，但是集团的所有成员都被判处了死刑。

youdao

An exception is when a jury is asked to recommend either execution or life in prison in murder cases punishable by death.

VOA: special.2009.08.31

Some of Mr Adams's former colleagues are already calling him a collaborator, traditionally an offence punishable by death.

ECONOMIST: Northern Ireland

But instead of giving him intensive medical treatment, officers there charged Pogany with cowardice, a military crime punishable by death.

NPR: Former Soldier Helps Others Fight Army for Help

The Supreme Court has ordered Musharraf to appear before them on charges of treason, a crime punishable by death in Pakistan.

CNN: Can Musharraf save U.S from liability for drone attacks?