lottery [5lCtEri] n. 抽彩，抓阄(contest in which winners are selected in a drawing of lots)

(类)lottery·raffle= ?? 抽彩·抽彩(同义)干扰：ticket·admission =入场券·入场

【注】raffle ：a lottery in which a number of persons buy chances to win a prize

lottery并无奖券的意思。这个意思的词是lots，chances。

loutish [`laJtIF] adj. 粗鲁的(resembling or befitting a clumsy，stupid fellow)

(类)coltish·discipline=loutish·grace 不受拘束的人不会守纪律=粗鲁的人不会优雅

(反)genteel ◆ loutish 有教养的 ◆ 粗鲁的

(同)boorish, churlish, cloddish

lubricate [5lu:brikeit] vt. 使润滑(to make smooth or slippery)

(类)oil·lubricate=antiseptic·disinfect 油用来润滑=杀菌剂用来消毒

lubricate·abrasion=seal·leakage 润滑防止磨损=密封防止渗漏

lucid [5lu:sid] adj. 清澈的，明晰易懂的(clear to the understanding：intelligible)

(类)lucid·perceive=transparent·understand=prominent·notice

明晰的容易觉察=明显的容易理解=杰出的容易注意

(反)lucid ◆ murky / vague / obfuscated 清晰的 ◆ 模糊的

lucubration [7lju:kju5breiFEn] n. 刻苦钻研，苦心的著作(laborious or intensive study)

(反)lucubration ◆ cursory consideration 刻苦钻研 ◆ 草草了事

(记)lucubrate， 谐音：撸胳膊(表示要刻苦钻研)

lug [lQ^] v. 拖,拉(to carry laboriously)

(类)lug·carry=trudge·walk 拖拉是艰难地运送=跋涉是艰难地走

lucrative [5lu:krEtiv] adj. 盈利的，有利可图的(producing wealth; profitable)

(记)来自lucre收益，钱财

lugubrious [lu:5^ju:briEs] adj. 悲哀的(尤指装出来的)(mournful;esp. affectedly mournful)

(反)lugubrious ◆ facetious/jovial 悲哀的 ◆ 幽默的/快乐的