病后他的手臂变得非常虚弱，连杯子都拿不稳。

His arms became so ___feeble after the illness that he couldn't even hold a cup steady.

她提出的借口太无力了，没人相信她。

Her excuse was so ___feeble that nobody believed her.

夕阳的微弱光芒几乎无法照亮整个房间。

The ___feeble glow of the sunset barely lit up the room.