worthless是什么意思

实用例句

1. Training is worthless unless there is proof that it works.

除非能证明训练有效，否则就是白搭。来自柯林斯例句

2. You feel you really are completely worthless and unlovable.

你会觉得自己真是毫无价值，一点也不讨人喜欢。来自柯林斯例句

3. The guarantee could be worthless if the firm goes out of business.

如果厂家倒闭，保修单就会变得毫无用处。来自柯林斯例句

4. I'd been brainwashed into believing I was worthless.

我被洗了脑，认为自己一文不值。来自柯林斯例句

5. She had been hoodwinked into buying a worthless necklace.

她受骗买了条一文不值的项链。来自《权威词典》