preservative
英 [pr?'z??v?t?v]
美[pr?'z?v?t?v]
- n. 防腐劑；預(yù)防法；防護(hù)層
- adj. 防腐的；有保存力的；有保護(hù)性的
GRETOEFL低頻詞暢通詞匯
詞態(tài)變化
復(fù)數(shù):?preservatives;
中文詞源
preservative 防腐劑
來自preserve,保護(hù)，保存。引申詞義防腐劑。
英文詞源
- preservative (adj.)
- late 14c., from Old French preservatif and directly from Medieval Latin praeservativus, from stem of praeservare (see preserve (v.)). The noun is from early 15c., "a preservative medication;" sense of "chemical added to foods to keep them from rotting" is from 1875.
雙語例句
- 1. The wood is treated with preservative to prevent decay.
- 這塊木頭用防腐劑處理過以防止腐爛.
來自《簡明英漢詞典》
- 2. Make sure the panels are treated with a wood preservative.
- 確保鑲板用木材防腐劑處理過.
來自《簡明英漢詞典》
- 3. New timber should be treated with a preservative.
- 新采的圓木應(yīng)進(jìn)行防腐處理.
來自《簡明英漢詞典》
- 4. Salt is a preservative for meat.
- 鹽是肉類的防腐劑.
來自《現(xiàn)代英漢綜合大詞典》
- 5. Though the panels come pre-treated, they needed a final sealing with two coats of preservative.
- 雖然這些鑲板運來時經(jīng)過了預(yù)處理，但是還需要涂上兩層防腐劑進(jìn)行最后的密封。
來自柯林斯例句