adj.没用的，无价值的，品质坏的，不中用的

We prey only on "worthless" species.
我们只捕食没有价值的物种。
Tom's parents had made him feel worthless
汤姆的父母认为他一无是处
The old, broken watch was practically worthless to him now. （那块破旧的手表现在对他来说几乎一文不值。）
His promises turned out to be worthless when he failed to keep any of them. （当他没有遵守任何承诺时，他的承诺证明是毫无价值的。）
The information they gathered was worthless without proper analysis. （如果没有适当的分析，他们收集的信息是毫无价值的。）
The antique turned out to be a fake, rendering it worthless on the market. （那件古董原来是假的，在市场上变得一文不值。）
His efforts to salvage the relationship proved worthless as she had already moved on. （他为挽救这段关系所做的努力证明是徒劳的，因为她已经继续前进了。）
The currency of that country became virtually worthless due to hyperinflation. （由于恶性通货膨胀，那个国家的货币实际上变得一文不值。）
The advice from someone who doesn't understand the situation is worthless. （来自不了解情况的人的建议是没有价值的。）
Collecting likes on social media can feel worthless if there's no genuine engagement. （如果没有任何真正的互动，在社交媒体上收集赞可能会感觉毫无意义。）
The once prized artifact, damaged beyond repair, was now considered worthless. （那件曾经珍贵的文物，因无法修复而今被视为无价值。）
Investing in a business with no clear plan is like throwing your money into a worthless venture. （在没有明确计划的事业上投资，就像把钱扔进一个没有价值的冒险中。）