1.laborious：a. 1.费力的2.勤勉的例如：They had the laborious task of cutting down the huge tree.（他们接受了伐大树的艰苦工作。）2.lacquer：n. 1.漆 2.发胶 v. 涂漆例如：It was the kind of house best displayed by lacquered floors and some wicker here, some velvet there.（这是那种只有配上清漆地板、柳编器具、天鹅绒才相得益彰的房子。）3.lagoon：n. 咸水湖，礁湖4.lament：v. 为……悲痛n. 哀歌例如：The childrenlament the death of their mother.（孩子们哀悼母亲的去世。）5.languid：a. 1. 倦怠的 2.（天气）阴沉的 3.（市场）不景气的例如：His languid manner annoys me when there’s work to be done.（有工作要做的时候,他那懒散的态度总叫我着恼。）6.lapse：n. 1.失误，小过失2.（时间）流逝v. 1.流逝 2.逐步陷入 3.（商业合同等）终止例如：He soon lapsed into his previous bad habits.（他很快陷入以前的恶习中去。）7.laryngitis：n. 喉炎8.lateral：a. 侧面的，横向的，旁支的9.launderette：n. 自助洗衣店10.laurel：n. 1.月挂树 2.（PL）荣誉
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