查词典可知,该词在英语中是副词(adv.),有两个意思:1)in the time between two events期间;2)during the same period of time同时。在《牛津高级英汉双解词典》(第4版第918页)所举的两个例子中,meanwhile所在的句子是用句号与前句分开的:1)She is due to arrive on Monday. Meanwhile, what do we do? 2)I went to college. Meanwhile, all my friends got well-paid jobs. 在
《朗文当代高级英语辞典》(最新版第941页)所举的两个例子中,一个是用句号分开的:They’ll be here soon. Meanwhile, let’s have coffee. 另一个例子中,meanwhile虽然是用逗号与前句隔开的,但meanwhile与其所在的句子之间没有用逗号隔开,而是连成一体:Eve was cutting the grass, (and) meanwhile Adam was planting roses. 为了弄清meanwhile的用法,笔者又查阅了相关的语法书。据张道真
《实用英语语法》(最新版第417页) [2],meanwhile属于“使与上文连接更紧的副词”,该书所举的例子中,meanwhile所在句子与前句是用分号隔开的:Jack ran for a doctor; meanwhile we stayed with the patient. L. G. 亚历山大编著的
《朗文英语语法》 [3]把meanwhile归于“连接副词和短语”,并指出:“连接副词可以出现在句首,在口语中后接一个停顿,在书面上则后接一个逗号。”(第258页)换言之,其前应用句号与另一句隔开。本回答被提问者采纳