保證書 (bǎozhèngshū) refers to a written guarantee for the quality of goods or services.
保證書 (bǎozhèngshū) 是指對物品品質或服務的書面保證。
| 1.生詞（表） | 保證書 |
|---|---|
| 2.ピンイン、意味（裏） | bǎozhèngshū : warranty |
| 4.品詞（裏） | N |
Tags: 5-1
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