读音

/ˈjuːsəlɪs/

释义

• 形容词: 没有用的，无益的，无效的。例如: “This tool is completely useless for the task at hand.”
• 名词: 无用的人或物。例如: “He considered his old computer a useless piece of junk.”

短语

• “Useless effort” 指的是白费力气的行为。
• “A useless endeavor” 意味着徒劳无功的尝试。

例句

• 形容词: “The instructions were so confusing that they turned out to be useless.”
• 名词: “He felt like a useless member of the team when he couldn’t contribute.”

同义词

• Ineffective
• Unhelpful
• Pointless
• Futile
• nugatory