?瑕疵是指物品或事物上的缺陷、錯誤或不完美之處。它可以用來描述任何有缺陷的東西，無論是實物還是抽象的概念。

用法：

瑕疵作為名詞使用，可數。它可以用作主語、賓語、定語或表語，也可以加上形容詞來修飾，如“嚴重的瑕疵”、“小小的瑕疵”。動詞形式為“有瑕疵”，表示某物具有缺陷。

例句1-5句且中英對照：

1. The product was found to have several flaws during quality control, which led to a recall. (在質量過程中該產品存在幾處缺陷，導致召回。)

2. The house was beautiful, but it had a few imperfections that the buyer noticed. (這棟房子很漂亮，但買家注意到了一些小小的缺陷。)

3. The new car model has been delayed due to some defects in the engine design. (新車型因發動機設計上的一些缺陷而推遲發布。)

4. The company has strict quality standards and does not tolerate any flaws in their products. (該公司有嚴格的質量標準，不能容忍產品中出現任何缺陷。)

5. Despite its flaws, the novel received critical acclaim and became a bestseller. (盡管有瑕疵，這部小說獲得了評論界的贊譽，并成為暢銷書。)

同義詞及用法：

1. Defect: 指物品或上的缺陷，強調缺陷對整體功能的影響。

例句：The defect in the machine caused it to malfunction. (機器上的缺陷導致其發生故障。)

2. Imperfection: 指物品或事物上的不完美之處，強調與完美相比的不足。

例句：The painting was beautiful, but the artist saw it as an imperfection in his work. (這幅畫很美，但藝術家認為它是他作品中的一個瑕疵。)

3. Flaw: 指物品或人身上的缺陷，強調對整體造成影響。

例句：Her beauty was marred by a small flaw on her face. (她臉上的一個小瑕疵影響了她的美貌。)

4. Blemish: 指物品或人身上的瑕疵，通常指外觀上可見的不完美之處。

例句：The actress's flawless skin was marred by a blemish on her cheek. (女演員臉頰上一處小瑕疵影響了她完美無暇的肌膚。)

5. Fault: 指物品或上的缺陷，強調缺陷是由于某種原因而產生的。

例句：The fault in the machine was caused by a faulty wiring system. (機器上的故障是由于有缺陷的電路造成的。)