an adverb that expresses the speaker’s attitude towards, or gives the subject of, the whole of the rest of the sentence句副词
In ‘Luckily, I didn't tell anyone’ and ‘Financially, we have a serious problem’, ‘luckily’ and ‘financially’ are sentence adverbs.在句子 Luckily, I didn't tell anyone 和 Financially, we have a serious problem 中，luckily 和 financially 是句副词。🔊🔊