in an instant/ at once：立即, 馬上

in all 總共 | in an instant/ at once 立即, 馬上 | in any case 無論如何

in no hurry to speak at once：不務速說

For long he remained silent regarding the essential, 久默斯要 | in no hurry to speak at once. 不務速說 | If those who are wise hear of it有智若聞

You don't buy it all at once. It's called layaway：不必一次付清,可以分期付款

Oh, shut your big, fat mouth.|收聲!收你的衰口 | You don't buy it all at once. It's called layaway.|不必一次付清,可以分期付款 | - Layaway, schmayaway-- - Yes, layaway.|分期付款,分期還款分期付款

Wind fell all at once. The trouble's not over yet." said Captain MacWhirr half aloud：風突然減弱了,麻煩還沒有結(jié)束. "麥克沃爾船長幾乎大聲地說

live by 以...為生;; | live for 渴望 | 18) "Wind fell all at once. The trouble's not over yet." said Captain MacWhirr half aloud."風突然減弱了,麻煩還沒有結(jié)束. "麥克沃爾船長幾乎大聲地說.

to come to the point at once;to speak in a downright way：單刀直入

to have a forbidding countenance貌如鐘馗 | to come to the point at once;to speak in a downright way單刀直入 | to strike a man when he is down打落水狗

operate on sb. at once：立即給某人做手術(shù)

one oxygen atom 一個氧原子 | operate on sb. at once 立即給某人做手術(shù) | our planet's nurseries 我們這個星球上的動植物養(yǎng)殖場

He set to work at once writing the book：他立即著手寫這本書

set... to work使開始工作 | He set to work at once writing the book.他立即著手寫這本書. | He set everyone to work together.他組織大伙一起工作.

then and there; at once：當場;立即

He spotted his friend in the crowd. 他在人群中認出了他的朋友. | on the spot 當場;立即 then and there; at once | He was killed on the spot. 他當場被殺.

Three balls at once. Who knew：一次三個.天知道會怎么樣

Hang on. And another one.|堅持住. 另一個來了. | Three balls at once. Who knew?|一次三個.天知道會怎么樣? | Four on one. Pibb won't go down without a fight.|四對一. 皮伯不會放過他的.

He has to have an operation to undergo at once：他不得不馬上動手術(shù)

operation n.[c] the act of a surgeon who cuts the body of a patient(外科)手術(shù) | He has to have an operation to undergo at once. 他不得不馬上動手術(shù). | n.[u] working, the way something works 工作;運轉(zhuǎn)