all at once 1：突然2. 同時,一起(可與at once 互換,但有強調(diào)之意)

in the front of 在......前部 | 5. all at once 1. 突然2. 同時,一起(可與at once 互換,但有強調(diào)之意) | at once 1. 立刻, 馬上2. 同時,一起

all at once: suddenly：突然

He once lived in Zambia.他曾經(jīng) (一度)住在贊比亞. | 3)all at once: suddenly 突然. | All at once the door opened.突然門開了.

at once：立刻

at no time 從不,決不 | at once立刻 | at one time 同時,曾經(jīng),從前曾

at once：立刻,馬上

at one time 以前,曾經(jīng) | at once 立刻,馬上 | at night 在夜里,在晚上

at once：同時

at least 至少 | at once 同時 | at the most 至多,頂多

at once and：又

at odds 爭執(zhí) | at once and 又 | at once right now 立刻

at once and：既又

at odds | 爭執(zhí), 不一致 | at once and | 既又 | at once right now | 立刻, 馬上

at once and：同時;既...又

at liberty自由,有權(做某事);閑著 | at once...and,.-同時;既...又... | at present目前,現(xiàn)在

at once payment：立即付款

at first sight 根據(jù)表面所見 | at once payment 立即付款 | at pilot station 在引航錨地

to one's astonishment = to one's surprise at once：立即,馬上

be astonished to do be astonished at be astonished that 驚訝 | to one's astonishment = to one's surprise at once 立即,馬上 | at the moment 此刻,目前