Premier Zhou ________________(一心想着人民的利益).

　　答案：has always had the interests of the people at heart

　　解析：英语里“一心想着”、“总是想着”可以用短语always think about、have sth.. at heart、be preoccupied with sth. 来表达。但是它们的感情色彩是截然不同的。第一个短语是一般性用语，感情色彩为中性;第二个短语感情色彩为褒义;第三个短语往往后接不好的事情，是贬义词。如：
　　我总是想着一放假就早点回家。
　　I always think about going back home earlier once on vacation.
　　王子一心想着复仇。
　　The Prince was preoccupied with revenge.