set foot in 进门
【讲解】
该习语的宇面意思是“将脚放人……”,意即“到达……”、“进人……”。
【对话】
A:What luck!
A:真倒霉!
B:What's the matter?
B:怎么了?
A:When I set foot in the classroom, I found that I forgot my textbook. The teacher happened to ask me to read the text in the class.
A:踏进教室的大门,我才发现自己忘了带课本。上课时老师又偏偏叫我读课文。
B:Be careful next time.
B:下次别这么粗心了。