at once

"at once" Chinese translation ("at once" in Chinese, "at once" 中文翻译, "at once"发音):

at once (1) 立刻,马上,即刻 He came at once. 他立刻就来 (2) 同时 No one can do two things at once. 没有人能同时做两件事 []

Related Entries (相关词条):

all at once (1) 突然,立刻 (suddenly) (2) 大家一起 [同时] Don't speak all at once. 不要都同时说话

One can not be in two places at once 一心不可二用。