—How can I use this washing machine?
—Well, just refer to the _______.
A. explanations B. expressions
C. introductions D. directions
—How can I use this washing machine?
—Well, just refer to the _______.
A. explanations B. expressions
C. introductions D. directions
D
directions 的意思是“使用说明”，空格前的 refer to 意为“查看”、“参考”。