2020年军队理工类职称英语考试同义词组辨析(14)

14.at once，immediately，right away，right now

　　这些表达都是 “立刻、马上”的意思。

　　at once 即刻行动的味道最浓. 常见于口语：Te11 him to come to the office at once. 叫他马上来办公室。immediately 的紧迫感稍轻些，常见于书面语：They took action immediately. 他们马上采取行动。right away 是美国英语，亦作right off，常见于口语：I'll come to pick you up right away. 我马上就来接你。right now 强调此刻的行动，常见于口语：He will see you right now. 他马上就见你。