She took two quick steps forward and struck him across the mouth.她向前紧走两步,上去扇了他一嘴巴。Take two paces forwards/backwards.向前/向后迈两步。A two-step process was used to test this hypothesis.用了一个分为两步的过程来验证这一假设。Bill took two steps forward and shook Mark's hand.比尔上前两步与马克握了手。Take two paces forward.向前走两步。