to say something without deep thinking or preparation
深く考えたり準備をせずに何かを言う
"I can’t remember the exact number off the top of my head."
"私は正確な番号を覚えていません 頭の中で"
to collaborate with someone for a common goal
to secure something tightly in preparation for trouble
to be in control of something or in charge of a situation
to feel very happy and positive
to remove bureaucratic obstacles or delays
a new beginning after difficulties or mistakes
