upgrade
UK
US
Paraphrase
分析词义
"Upgrade"通常用作动词,意思是“提升”或“升级”。它表示改善某人或某物的性质、等级或属性。当用为名词时,它表示一个改良或更好的状态。
列举例句
词根分析
"Upgrade"的词根来自拉丁语中的 "gradus",意为"步"。"Up-" 是个词缀,表示"向上"或"升高"。
词缀分析
"Upgrade" 主要由两部分构成,“up-” 和 “-grade”。“up-”是前缀,表示向上的方向或增加;“-grade”是词根,表示级别或状态。
发展历史和文化背景
"Upgrade" 这个词出现在19世纪后期,在工业革命的背景下,随着科技和生活质量的进步,人们开始有了改进产品和服务的需求,并因此产生了这个词。
单词变形
"Upgrade" 是一个规则动词,过去时和过去分词为 "upgraded",现在分词为 "upgrading";复数形式为 "upgrades";作为名词时,"upgrade" 的复数形式为 "upgrades"。
记忆辅助
记住 "up" 和 "grade" 的字面意思,将它们放在一起就是“提升等级”,非常直观。
小故事
Tom had been using the same computer for five years. One day, he decided it was time for an upgrade, so he bought a brand-new, high-performance machine.(汤姆已经用了五年的那台电脑。有一天,他决定是时候升级了,于是他买了一台全新的、高性能的机器。)
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