車子翻過去
這一家就是核心畫面本身，沒有轉過彎：真的有東西翻過去，而且翻的是一整台車。其他家的意思都可以拿這個畫面當底圖。
noun · B2
An accident in which a moving vehicle turns over onto its side or onto its roof.
翻車（事故）
核心畫面
You can picture rollover as the phrase roll over turned into a thing: something goes right over, past the edge it was sitting on, and comes down on the other side. A van on a bend is the plainest version — it tips, turns, and lands on its roof. From there the same movement is easy to see somewhere else: money reaches the end of a month or a term and, instead of stopping, goes over that line into the next one. And a pointer travelling across a picture is a third kind of going over — this time the pointer does the rolling, and the picture changes as it passes.
rollover 可以想成把片語 roll over 變成一個東西：某樣東西整個翻過去、滾過它原本待著的那條邊，落到…更多收起
rollover 可以想成把片語 roll over 變成一個東西：某樣東西整個翻過去、滾過它原本待著的那條邊，落到另一邊。最好懂的版本是彎道上的廂型車：車身一傾、一翻，換屋頂著地。同一個動作換個場景就好懂了——錢走到月底或期滿那條線，沒有停下來，而是滾過去，進到下一期。第三種是指標從一張圖上滑過去，這次滾過去的是指標，圖則在它經過時變了樣。From the word’s history
The supplied Wiktionary entry says only this: rollover is deverbal from roll over. So the noun is the phrasal verb made into a thing, which is why every sense still shows that movement. Nothing further about its history is claimed here.
packet 裡的 Wiktionary 條目只寫了一句：rollover 是從片語動詞 roll over 變來的名詞（deverbal）。所以這個名詞就是那個動作被當成一件事來講，也難怪每個意思裡都還看得到「翻過去、滾過去」。更多的來源說法，這份資料裡沒有，就不多說。
Wiktionary entry for “rollover” supplied in this packet (kaikki extract, source_ref kaikki:3f6f69a190036ae4:1022535760): “Deverbal from roll over.”
Three branches
到期了，滾進下一期
把核心畫面裡的「那條邊」換成時間上的界線：月底、期滿、開獎日。東西走到線上沒有停，翻過去落在下一期裡。
noun · C1
An occasion when money is moved from one bank account, pension, or investment into another one, with no tax or fee having to be paid at the time of the move.
轉存（免稅移轉）
指標從上面滾過去
這一家的 over 是「從上面經過」，不是「翻過去」。所以它跟核心畫面沾得比較鬆，另外給一個自己的畫面比較好懂。
noun · C1
A way of making a word or picture on a screen change how it looks while the pointer is resting on it.
滑鼠滑過變換效果