英语翻译at once修饰的是call,还是back.是做补语,还是状语?

英语翻译at once修饰的是call,还是back.是做补语,还是状语? 英语翻译应是It is necessary —— you——— a telephone call him at once. Please call me up at once.的同义句 Please call the studtens back at once.the studtens 是宾语 back是宾语的补足语对吗? 英语翻译At your call. 英语翻译at once but the owner caught him at once and went to the telephone to call the police 这句话中call的同义短我问的是这句话中call的同义短语，不是要翻译 Please call the students back at once可以说明一下哪个是宾语和宾补吗 You must go to the school office and call the police at once.与at once意思相近的单词或词组的是A.right nowB.hurry upC.fastD.in a hurry 英语翻译to call 是修饰 index吗?index＝索引call＝调用主要是to在这里是起什么作用-------------------编程的注释int nIndex; // index of next function to call Whenever you come back.call me at once的同意句 at once 的同义词是?词组 He asked the _____(surprise)man to leave at once.答案是surprising 而不是surprised ing形式不是修饰物 ed形式是修饰人的么?请给我具体解释一下可以么 call at call in call off call out的用法 Please call me at once. 这句话什么意思 I will call her at once 是什么意思帮帮忙 at once的同义词 at once 的意思