| 正面 | 12978.detergent 英 [dɪ'tɜːdʒ(ə)nt]美 [dɪ'tɝdʒənt]     |
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| 背面 |      释义： 1. detergent("地特净的")—>洁净的。n. 清洁剂；去垢剂 例句： 1. The active ingredient in some of the mouthwashes was simply detergent.某些漱口剂中的有效成分只不过是洗涤剂而已。 detergent 洗涤剂de-, 向下，强调。-terg, 转，磨擦，词源同turn, terse. 引申义洗涤，洗涤剂。 detergentdetergent: [17] A detergent is literally something that ‘wipes away’. The word comes from dētergent-, the present participial stem of Latin dētergēre, a compound verb formed from dē- ‘away’ and tergēre ‘wipe’ (its past participle produced English terse). English detergent originally meant simply ‘cleansing agent’ (used particularly in a medical or surgical context); the specific application to a cleanser made from synthetic chemical compounds (as opposed to soap, which is made from fats and lye) is a 20thcentury development.=> tersedetergent (adj.)1610s, from Latin detergentem (nominative detergens), present participle of detergere "to wipe away, cleanse," from de- "off, away" (see de-) + tergere "to rub, polish, wipe." Originally a medical term, application to "chemical cleansing product" is from 1938.detergent (n.)"detergent substance," 1670s, from detergent (adj.)." |