weak

His legs felt very weak after he finished running the twenty-mile marathon.

(Chinese) 跑完20英里的马拉松后，他的腿感到非常虚弱。

The old wooden bridge is too weak to support the weight of a heavy truck.

(Chinese) 那座旧木桥太脆弱了，承受不了一辆重型卡车的重量。

I like my coffee strong, so this cup tastes a bit too weak for my liking.

(Chinese) 我喜欢浓咖啡，所以这杯对我来说味道有点太淡了。

The tea was weak and watery because the tea bag wasn't left in long enough.

(Chinese) 茶味很淡且稀薄，因为茶包泡的时间不够长。