| 单词 | ballast |
|---|---|
| 音标 | ['bæləst] |
| 解释 | n.(船等)压舱物 |
| 红宝书 | 【英】 n.(船等)压舱物(anyt hing heavy carried in a ship, aircraft, or vehicle to give s tability) 【考】 ballast : instability / purchase : slippage(压舱物为了防止不稳 定/支点是为了防止滑 落)ballast : stability / girder : support(压舱物有稳定作用/ 横梁有支撑作用) 【记】 分割记忆：ball-last , 最后的球→压舱物 【例】 The ships carried many tons of stone ballast. |
| 字源 | ballast (n.) "heavy material used to steady a ship," 1520s, from Middle English bar "bare" (see bare; in this case "mere") + last "a load, burden," or borrowed from identical terms in North Sea Germanic and Scandinavian (compare Old Danish barlast, 14c.). "Mere" because not carried for commercial purposes. Dutch balg-last "ballast," literally "belly-load," is a folk-etymology corruption. |
| 不择手段背单词 | n. 压舱物(放在船舱或热气球吊篮里的重物, 以增加稳定性); (性格上的)稳定因素 【记】ball球, last最后－最后的球－船最底层放了好多球－压舱物 【类】ballast: instability = purchase: slippage压舱物防止不稳定 = 支点防止滑落ballast: stability = girder: support压舱物有稳定作用 = 横梁有支撑作用 |
| 趣味全助记 | 【记】ball + last 最后的球，船上压舱的球 |
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