standing on your head idiom informal
轻而易举，易如反掌
If you can do something standing on your head, you can do it very easily.
It's the sort of program Andrew could write standing on his head. 写这种程序对于安德鲁而言是小菜一碟。
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。