B-28：break one's neck 拼命努力
A：I am exhausted these days.
A: 这些天我都快累死了。
B: What are you doing?
B：你在做什么？
A: I broke my neck in preparing for the final exams. Sometimes I had to burn the midnight oil.
A：我拼命复习，准备期末考试。有时还得熬夜。
B: If you have worked hard at usual time, you needn’t stay up now.
B：如果你平时努力学习的话，现在就不用这样了。
