on tiptoe
英
美
- 踮脚； 翘首以待
on tiptoe的用法和样例：
例句
- Several children are standing on tiptoe to look into the house.
几个孩子正踮脚往窗子里看。
词汇搭配
- be on tiptoe with curiosity 充满好奇心,好奇得心...
