求翻译：今年暑假开始后，我要为下学期的英语四级做准备，学习高频词汇，争取一次性通过。这是我在暑假最主要的任务。最后，祝老师暑假快乐!是什么意思？

After the start of this summer, I want to prepare for next semester's English is four grades, high-frequency vocabulary learning, fight for a one-time pass. This is the main task of the summer vacation. Finally, I wish the teacher happy summer!