one at a time

基本解释

Begin by asking employees, one at a time, what they need to perform at their best.
因此，首先，每次問一個員工，他們在自己狀態最好的時候需要些什麽？
You want to make sure you don’t get something that requires putting each page, one at a time, on a flat bed.
有些需要把每頁紙一次一頁地放在平坦的牀上進行瀏覽，因而要確定從中你會不會得到一些東西。
That's exactly what happened with smoking. Smokers were essentially just pushed to the outer edges of social networks one at a time.
這正是發生在吸菸者身上的事件，吸菸者基本上在某個時間點會被推到一個邊緣的社會網絡。

A reputation -- what people think of you, good or bad -- is built one message at a time.
So what would I want to do? I'd like to somehow walk down each of the digits one at a time and add them up. Ah, that's a looping mechanism, right? I need to have some way of walking through them.
去取這個數的,每個數字然後把他們加起來,啊，這是個循環機制對不對？,我得找到一個遍歷它們的方法,一種簡單的方法可能。
麻省理工公開課 - 計算機科學及編程導論課程節選
And you like working with kids. But maybe just one or two at a time.
你挺喜歡跟小孩子相処的，但也僅僅是同時跟一兩個孩子打交道的時候。
How many課堂 - SpeakingMax英語口語達人

See the movies one at a time, with a stiff drink after each one.
NEWYORKER: The Red Riding Trilogy