水上的那塊板子，和站在上面的人
這一組就是核心畫面本身：板子浮在水面，人站上去，船在前面拖。
noun · C2
A thin flat board that you stand on while a fast boat pulls you along over the surface of the water.
滑水板
核心畫面
One picture holds this whole word: something flat riding on top of the water instead of sinking into it. A board with a person standing on it, along behind a boat. The water is not being cut through; it is being ridden on. Once you can see that, the car use is the same picture with different equipment, because a tyre on a film of is also a flat thing riding on top of water.
這個字可以想成一個畫面：一樣平平的東西貼在水面上滑過去，而不是沉進水裡。板子上站著人，被快艇拖著，整塊板子浮在水面往…更多收起
這個字可以想成一個畫面：一樣平平的東西貼在水面上滑過去，而不是沉進水裡。板子上站著人，被快艇拖著，整塊板子浮在水面往前跑。水沒有被切開，是被「踩在上面」。有了這個畫面，車子那個意思就好懂了：輪胎浮在一層雨水上，也是一樣平平的東西貼著水面滑，只是換成輪胎而已。From the word’s history
The source explains the noun as aqua- (water) plus plane (a flat or level surface), with the verb formed from the noun and readable as aqua- plus plane in its sense of gliding or skimming a water surface. The flat thing on the water is therefore built into the word itself.
來源說這個名詞是 aqua-（水）加上 plane（平面），動詞則是從名詞來的，也可以讀成 aqua- 加上 plane 的「滑過水面」那個意思。所以「水上的一塊平面」本來就寫在字裡面。這一點是來源說的，不是我們自己推的。
English Wiktionary extract supplied in this packet (source_ref kaikki:3f6f69a190036ae4:1174287359:7880; verb entry kaikki:3f6f69a190036ae4:1174295239:9193)
Two branches
輪胎浮在雨水上
同一個畫面換掉主角：板子換成輪胎，湖面換成路上那層雨水。人是為了好玩才浮在水上，車子卻是不小心浮起來，所以這個意思帶著危險的感覺。
verb · C1
If a car aquaplanes, its tyres ride up onto a layer of water lying on a wet road, so they stop touching the road and the driver cannot steer or brake properly.
打滑（輪胎浮在積水上）