be all (that) you can do idiom informal
尽己所能；咬牙苦撑
If it is all (that) you can do to do something, you are trying very hard to do it and it is difficult.
This is so boring, it's all I can do to stay awake. 这太乏味了，我咬牙苦撑才不至于睡着。
江苏热线英汉汉英双解词典包含207361条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。