lap

lap¹
noun

常用词组
fall (或 drop) into someone's lap

(of something pleasant or desirable) come someone's way without any effort having been made
（好事）轻而易举得到，得来全不费功夫
women fall at his feet, power falls into his lap.
女人拜倒在他脚下，权柄降到他的身上。

in someone's lap

as someone's responsibility
作为某人的责任
she dumped the problem in my lap.
她把这个问题推到了我身上。

in the lap of the gods

(of the success of a plan or event) open to chance； depending on factors that one cannot control
（计划或事件的成败）听天由命

in the lap of luxury

派生
lapful
( pl. -fuls)
noun(pl. -fuls)
语源

Old English læppa, of Germanic origin; related to Dutch lap, German Lappen 'piece of cloth'. The word originally denoted a fold or flap of a garment (compare with lapel), later specifically one that could be used as a pocket or pouch, or the front of a skirt when held up to catch or carry something (Middle English), hence the area between the waist and knees as a place where a child could be nursed or an object held

lap²
noun

one circuit of a track or racetrack
（跑道或赛道的）一圈
■a stage in a swim consisting of two lengths of a pool
（与泳池来回距离相等的）泳段
■a section of a journey or other endeavour
（旅程或其他活动的）一段
we caught a cab for the last lap of our journey.
我们叫了一辆出租车完成最后一段旅程。
an overlapping or projecting part
重叠部分；凸出部分
■[mass noun]the amount by which one thing overlaps or covers a part of another
重叠量，覆盖程度
■(Metallurgy)a defect formed in rolling when a projecting part is accidentally folded over and pressed against the surface of the metal
(冶)折皱
■(in a steam engine) the distance by which the valve overlaps the steam port (or the exhaust port)
（蒸汽机）阀遮盖量
a single turn of rope, thread, or cable round a drum or reel
（线绳缠绕）一圈
■a layer or sheet, typically wound on a roller, into which cotton or wool is formed during its manufacture
（棉花或羊毛加工绕辊时）一层，一片
(in a lapping machine) a rotating disc with a coating of fine abrasive for polishing
（研磨机）磨盘
■a polishing tool of a special shape, coated or impregnated with an abrasive
抛光工具

(lapped, lapping)
[with obj.]

overtake (a competitor in a race) to become one or more laps ahead
领先（竞赛对手）一圈（或数圈）
she lapped all of her rivals in the 3,000 metres.
她在3,000米赛跑中领先所有对手。
■[no obj.](of a competitor or vehicle in a race) complete a lap, especially in a specified time
（选手、赛车，尤指在一定时间内）完成一圈
Mansell lapped two tenths of a second faster than anyone else.
曼塞尔比其他选手每圈快0.2秒。
(lap someone/thing in)(poetic/literary)enfold or swathe a person or thing, especially a part of the body, in (something soft)
(诗／文)（用软物）包裹，包扎
he was lapped in blankets.
他被毯子包了起来。
I was accustomed to being lapped in luxury.
我习惯于被包围在奢华之中。
[no obj.]project beyond or overlap something
凸出，覆盖
the blanket of snow lapped over the roofs of the house.
积雪层铺满并盖过了屋顶。
polish (a gem, or a metal or glass surface) with a lapping machine
用精研机抛光（宝石、金属或玻璃表面）

语源

Middle English (as a verb in the sense 'coil, fold, or wrap'): from lap. Sense 1 of the noun and verb date from the mid 19th cent

lap³
(lapped, lapping)
[with obj.]

noun

[in sing.]the action of water washing gently against something
水流冲刷
listening to the comfortable lap of the waves against the shore.
倾听海浪徐徐冲刷着海岸。

语源

Old English lapian, of Germanic origin; related to Middle Low German and Middle Dutch lapen

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