rear end

基本解释

It covers your middle section, and it covers your rear end.
它蓋住了你的中間部分和突起的臀部。
And your gluteus muscles — you know, your rear end, your thighs, your calves — these are things that make for good running, but they also make for good throwing.
此外，你的臀部肌肉，大腿，小腿-這些不僅是讓你成爲一名良好的奔跑者的東西，它們也讓你成爲投擲高手。
Because if you are wearing an A-line dress or a shift dress, it will go right past your butt all the way down to your knee, and your rear end doesn't look so prominent.
因爲如果你穿著A型裙或連衣裙，它會越過臀部捶到膝蓋，所以突出的屁股就不那麽明顯了。

Because we find in that plane, when objects are left at what you think is at rest with no external agency acting on them, they all slide backwards towards the rear end of the plane.
因爲我們發現,在飛機上,儅物躰掉在地上,你認爲它不受外力作用,應該保持靜止時,它卻朝著飛機的尾部滾去
耶魯公開課 - 基礎物理課程節選

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