病后，她变成了一位虚弱的老人。

After her illness, she became a ___frail old lady.

病床上那位虚弱的妇人看起来很困惑。

The ___frail woman in the hospital bed looked confused.

他一直很强壮，但现在却显得虚弱而脆弱。

He had always been strong, but now he seemed ___frail and vulnerable.