。
Only truly devoted women can endure this kind of work.
Literal
Truly devoted [attributive-な] women [only-のみ]-[subject-が] this work [target-に] can-endure.
Several interesting features. のみ is a written/formal restrictive meaning 'only,' more literary than the colloquial だけ. It stacks with が to mark the (restricted) subject. 耐える ('to endure, bear') unusually takes its object with に rather than を, because the target is the thing one bears up against. 耐えられる is the potential form, 'can endure.' The overall register is that of a written description or mission statement.