一时记不起来的英文

off the top of one’s head

• 一时:    for a short while; ...
• 记:    remember; bear in ...
• 不:    a block of wood
• 起来:    stand up; sit up; ...

例句与用法

1. Lee : sorry , i don ' t have my address book with me . i can ' t think of it off hand
   小李：抱歉，我的电话簿不在身上，我一时记不起来。