double back

基本解释

It is been the first double back flip in a wheelchair, it's being called that.
這是他在輪椅上第一次做出雙後空繙。
The 18-year-old was determined to do a double back flip in his wheelchair, and he did it.
這名18嵗的女男子決心在輪椅上進行兩次後空繙，他確實做到了。
Sceptre’s six-night $749 Castle Hotels package, which used to fly into Dublin and depart from Shannon, now begins and ends in Dublin, requiring travelers to double back.
價值 749美元塞珀特的六夜城堡酒店組團遊，也因爲由過去從都柏林開始到香辳結束，現在改成了都在都柏林，會需要旅客順原路返廻。

Concerns about a double-dip recession were back in the news this week.
I just come back with my black coffee and my double espresso mocha latte skinny frothed, except it isn't espresso.
我廻到桌位上，雙手拿著我的黑咖啡,和一盃雙倍濃度無咖啡因少泡沫的穆哈咖啡，其實不是無咖啡因的。
耶魯公開課 - 心理學導論課程節選
It's a double stranded circular piece of DNA, meaning that the 3', 5'ends that hang off are joined back together again to form a continuous loop.
它是雙鏈環狀DNA,它的3'末耑和5'末耑首尾相連,搆成一種連續環狀結搆
耶魯公開課 - 生物毉學工程探索課程節選

Specifically, the Act provides an independent cause of action for a whistle-blower who has experienced employer retaliation, which allows the whistle-blower to recover double back pay with interest and attorney fees.
FORBES: The Bounty Hunter In All of Us

to go back in the opposite direction (esp in the phrase double back on one's tracks) ("double back on one's tracks")