kinetic adj. 運動的;動力學的

　　詞根記憶：kine+tic運動的

　　know-how n. 專業技能，知識

　　分拆聯想：know+how知道如何做專業技能

　　The technical know-how, if not the political commitment, appears already at hand to feed the worlds exploding population and so to eradicate at last the ancient scourges of malnutrition and famine.

　　laborious adj. 費力的，艱難的

　　lackadaisical adj. 無精打采的;無興趣的

　　分拆聯想：lack+a+daisi+cal缺少第一流人物讓人無精打采

　　laconic adj. 簡潔的

　　來自古希臘王國Laconia，以說話簡潔而聞名

　　concise, brief, curt, succinct, terse

　　laggard adj. 緩慢的;落后的;n. 落后者

　　lag+gard落后的

　　lament vt. 悲傷;哀悼

　　languid adj. 沒精打采的，倦怠的

　　largesse n. 慷慨

　　詞根記憶：large+sse大方

　　Famous among job seekers for its largesse , the company, quite apart from generous salaries, bestowed on its executives annual bonuses and such perquisites as low-interest home mortgages and company cars.