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(jiǎn)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(jiǎn)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(jiǎn)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.