ADJ.
- If a value is present, return true, otherwise false.
N. now?
- You cannot undo the past. You cannot predict the future. The only real moment in your life is Present.
- Even if the present, the match does not stop changes the page。即使现在，对手也不停地翻动书页。
- 2009-present 2009年至今
- at present 目前（为止）
- We do not have any more information at the present time.