%w
creates an "array of words," and uses whitespace to separate each value. Since you want to separate on another value (in this case, whitespace outside sets of quotation marks), just use a standard array:
['Upload a photo', 'Billing Info', 'Confirmation Screen']
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…