| 正面 | 8622.darken 英 ['dɑːk(ə)n]美 ['dɑrkən]     |
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| 背面 |     释义： 1. ac- "in addition" + cumul- + -ation.2. 含义：heap up, amass.vt. 使变暗；使模糊vi. 变黑；变得模糊 例句： 1. Nothing was going to darken his mood today.今天什么都不会影响到他的心情。 darken (v.)c. 1300, "to make dark;" late 14c., "to become dark," from dark (adj.) + -en (1). The more usual verb in Middle English was simply dark, as it is in Chaucer and Shakespeare, and darken did not predominate until 17c. The Anglo-Saxons also had a verb sweorcan meaning "to grow dark." To darken someone's door (usually with a negative) is attested from 1729." |